Historical Figure
Patrick Gass
Patrick Gass was an Irish-born American soldier who served as a sergeant in the Corps of Discovery after being elected by his fellow soldiers to replace the deceased Sergeant Charles Floyd. An experienced carpenter, Gass supervised the construction of Fort Mandan and Fort Clatsop, the expedition's two winter quarters. His journal, published in 1807, was the first published account of the Lewis and Clark Expedition, appearing seven years before the official Biddle edition. Gass was the last surviving member of the expedition, dying in 1870 at the remarkable age of 99.
Portrait: Centennial History of Oregon, Public Domain
0 treaties
734 total items
732 mapped locations
Related Locations
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Planning (1801–1804)
Westward (1804–1805)
Fort Clatsop (1805–1806)
Return (1806)
Post (1806–1812)
Master expedition route
Note: the longest gap between tagged appearances is about 5 months (Oct 28, 1804 → Apr 8, 1805). Patrick Gass may have been present in the corps during that span but is not named in the journals.
Journal Entries (732)
Patrick Gass: September 23, 1806
Patrick Gass: May 20, 1804
Patrick Gass: May 21, 1804
Patrick Gass: May 16, 1804
Patrick Gass: May 17, 1804
Patrick Gass: May 18, 1804
Patrick Gass: May 19, 1804
Patrick Gass: May 15, 1804
Patrick Gass: May 14, 1804
Fort Mandan, North Dakota — Joseph Whitehouse: November 17, 1804
Missouri River near Little Sioux River — Charles Floyd: August 17, 1804
Missouri River through Kansas-Missouri area — Patrick Gass: September 15, 1806
Missouri River through Kansas-Missouri area — Patrick Gass: September 16, 1806
Missouri River through Kansas-Missouri area — Patrick Gass: September 18, 1806
Missouri River through Kansas-Missouri area — Patrick Gass: September 17, 1806
Missouri near Floyd’s Bluff and Council Bluffs — Patrick Gass: September 11, 1806
Missouri near Floyd’s Bluff and Council Bluffs — Patrick Gass: September 13, 1806
Missouri near Floyd’s Bluff and Council Bluffs — Patrick Gass: September 14, 1806
Missouri River through Dakota territory — Patrick Gass: September 7, 1806
Missouri River through Dakota territory — Patrick Gass: September 8, 1806
Missouri River through Dakota territory — Patrick Gass: September 6, 1806
Missouri River through Dakota territory — Patrick Gass: September 3, 1806
Missouri River through Dakota territory — Patrick Gass: September 5, 1806
Rapid descent of Missouri, 70-80 miles/day — Patrick Gass: August 29, 1806
Rapid descent of Missouri, 70-80 miles/day — Patrick Gass: August 31, 1806
Missouri River through Dakota territory — Patrick Gass: September 2, 1806
Rapid descent of Missouri, 70-80 miles/day — Patrick Gass: August 30, 1806
Rapid descent of Missouri, 70-80 miles/day — Patrick Gass: August 23, 1806
Rapid descent of Missouri, 70-80 miles/day — Patrick Gass: August 24, 1806
Rapid descent of Missouri, 70-80 miles/day — Patrick Gass: August 21, 1806
Rapid descent of Missouri, 70-80 miles/day — Patrick Gass: August 25, 1806
Rapid descent of Missouri, 70-80 miles/day — Patrick Gass: August 27, 1806
Down Missouri, approaching Mandan villages — Patrick Gass: August 15, 1806
Mandan villages, Charbonneau family stays — Patrick Gass: August 18, 1806
Down Missouri, approaching Mandan villages — Patrick Gass: August 16, 1806
Patrick Gass: August 17, 1806
Mandan villages, Charbonneau family stays — Patrick Gass: August 19, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 9, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 10, 1806
Down Missouri, approaching Mandan villages — Patrick Gass: August 13, 1806
Lewis and Clark reunite at Missouri-Yellowstone confluence — Patrick Gass: August 12, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 4, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 6, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 5, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 7, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 2, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 3, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: August 1, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: July 31, 1806
Lewis: up Marias River / Clark: down Yellowstone — Patrick Gass: July 23, 1806
Lewis: up Marias River / Clark: down Yellowstone — Patrick Gass: July 24, 1806
Patrick Gass: July 25, 1806
Lewis: fight with Blackfeet at Two Medicine River — Patrick Gass: July 26, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — Patrick Gass: July 28, 1806
Lewis: up Marias River / Clark: down Yellowstone — Patrick Gass: July 22, 1806
Patrick Gass: June 26, 1806
Successful Bitterroot crossing with Nez Perce guides — Patrick Gass: June 27, 1806
Successful Bitterroot crossing with Nez Perce guides — Patrick Gass: June 28, 1806
Successful Bitterroot crossing with Nez Perce guides — Patrick Gass: June 29, 1806
Waiting for Nez Perce guides at Weippe Prairie — Patrick Gass: June 19, 1806
Waiting for Nez Perce guides at Weippe Prairie — Patrick Gass: June 22, 1806
Successful Bitterroot crossing with Nez Perce guides — Patrick Gass: June 25, 1806
Waiting for Nez Perce guides at Weippe Prairie — Patrick Gass: June 20, 1806
Waiting for Nez Perce guides at Weippe Prairie — Patrick Gass: June 23, 1806
Successful Bitterroot crossing with Nez Perce guides — Patrick Gass: June 24, 1806
Bitterroot crossing attempt, turned back by snow — Patrick Gass: June 14, 1806
Bitterroot crossing attempt, turned back by snow — Patrick Gass: June 15, 1806
Bitterroot crossing attempt, turned back by snow — Patrick Gass: June 17, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: June 9, 1806
Bitterroot crossing attempt, turned back by snow — Patrick Gass: June 10, 1806
Bitterroot crossing attempt, turned back by snow — Patrick Gass: June 13, 1806
Bitterroot crossing attempt, turned back by snow — Patrick Gass: June 11, 1806
Bitterroot crossing attempt, turned back by snow — Patrick Gass: June 12, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: June 6, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: June 7, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: June 8, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: June 3, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: June 4, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: June 5, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 28, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 29, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 30, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 31, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 24, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 25, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 26, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 22, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 27, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 18, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 19, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 16, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 13, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 14, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: May 17, 1806
Nez Perce camps, reuniting with horses — Patrick Gass: May 11, 1806
Nez Perce camps, reuniting with horses — Patrick Gass: May 12, 1806
Nez Perce camps, reuniting with horses — Patrick Gass: May 9, 1806
Nez Perce camps, reuniting with horses — Patrick Gass: May 10, 1806
Nez Perce camps, reuniting with horses — Patrick Gass: May 2, 1806
Nez Perce camps, reuniting with horses — Patrick Gass: May 6, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 29, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 27, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 28, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 23, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 24, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 25, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 26, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 20, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 21, 1806
Overland to Walla Walla, council with Yelleppit — Patrick Gass: April 22, 1806
Columbia near The Dalles, trading for horses — Patrick Gass: April 14, 1806
Columbia near The Dalles, trading for horses — Patrick Gass: April 15, 1806
Columbia near The Dalles, trading for horses — Patrick Gass: April 16, 1806
Patrick Gass: April 11, 1806
Columbia near The Dalles, trading for horses — Patrick Gass: April 12, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: March 31, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: March 29, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: March 27, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: March 28, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: March 30, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 22, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: March 26, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 21, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: March 24, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: March 25, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 13, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 14, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 15, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 16, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 18, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 20, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 6, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 7, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 8, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 9, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 11, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 22, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 25, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 26, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 28, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 17, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 18, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 19, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 21, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 5, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 7, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 8, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 9, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 10, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 11, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 29, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 31, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 23, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 24, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 25, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 27, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 28, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 18, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 19, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 20, 1806
Building and occupying Fort Clatsop — Patrick Gass: December 6, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 7, 1805
Canoe Camp on Clearwater River — Patrick Gass: October 5, 1805
Weippe Prairie, rescued by Nez Perce — Patrick Gass: September 21, 1805
Lost and starving in Bitterroot Mountains — Patrick Gass: September 19, 1805
Patrick Gass: September 20, 1805
Weippe Prairie, rescued by Nez Perce — Patrick Gass: September 22, 1805
Nez Perce villages on Clearwater — Patrick Gass: September 23, 1805
Lost and starving in Bitterroot Mountains — Patrick Gass: September 18, 1805
Lost and starving in Bitterroot Mountains — Patrick Gass: September 17, 1805
Travelers’ Rest near present-day Lolo, MT — Patrick Gass: September 9, 1805
Travelers’ Rest near present-day Lolo, MT — Patrick Gass: September 11, 1805
Lost Trail Pass, meeting Flathead Salish at Ross’s Hole — Patrick Gass: September 7, 1805
Lost Trail Pass, meeting Flathead Salish at Ross’s Hole — Patrick Gass: September 8, 1805
Travelers’ Rest near present-day Lolo, MT — Patrick Gass: September 10, 1805
Lolo Trail, ascending into Bitterroot Mountains — Patrick Gass: September 12, 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — Patrick Gass: August 24, 1805
Three Forks of the Missouri — Patrick Gass: July 30, 1805
Patrick Gass: July 28, 1805
Missouri River above Great Falls, Gates of the Mountains — Patrick Gass: July 24, 1805
Patrick Gass: July 25, 1805
Three Forks of the Missouri — Patrick Gass: July 26, 1805
Missouri River above Great Falls, Gates of the Mountains — Patrick Gass: July 16, 1805
Missouri River above Great Falls, Gates of the Mountains — Patrick Gass: July 19, 1805
Missouri River above Great Falls, Gates of the Mountains — Patrick Gass: July 20, 1805
Missouri River above Great Falls, Gates of the Mountains — Patrick Gass: July 21, 1805
Great Falls Portage — Patrick Gass: July 9, 1805
Great Falls Portage — Patrick Gass: July 11, 1805
Great Falls Portage — Patrick Gass: July 13, 1805
Great Falls Portage — Patrick Gass: July 14, 1805
Great Falls Portage — Patrick Gass: July 4, 1805
Great Falls Portage — Patrick Gass: July 5, 1805
Great Falls Portage — Patrick Gass: July 6, 1805
Great Falls Portage — Patrick Gass: July 7, 1805
Great Falls Portage — Patrick Gass: July 8, 1805
Great Falls Portage — Patrick Gass: July 2, 1805
Great Falls Portage — Patrick Gass: July 3, 1805
Marias River decision camp — Patrick Gass: June 9, 1805
Missouri River Breaks area — Patrick Gass: May 12, 1805
Missouri River Breaks area — Patrick Gass: May 13, 1805
Missouri River Breaks area — Patrick Gass: May 14, 1805
Missouri River Breaks area — Patrick Gass: May 9, 1805
Missouri River Breaks area — Patrick Gass: May 11, 1805
Missouri River near Porcupine River — Patrick Gass: May 7, 1805
Missouri River near Porcupine River — Patrick Gass: May 1, 1805
Missouri River near Porcupine River — Patrick Gass: May 3, 1805
Missouri River near Porcupine River — Patrick Gass: May 4, 1805
Missouri River near Porcupine River — Patrick Gass: May 5, 1805
Missouri River near Porcupine River — Patrick Gass: May 6, 1805
Fort Mandan, preparing for departure — Patrick Gass: April 5, 1805
Fort Mandan, preparing for departure — Patrick Gass: February 14, 1805
Fort Mandan (winter) — Patrick Gass: January 25, 1805
Fort Mandan (winter) — Patrick Gass: January 26, 1805
Fort Mandan (winter) — Patrick Gass: January 24, 1805
Missouri River approaching Cannonball River — Patrick Gass: October 13, 1804
Missouri River approaching Cannonball River — Patrick Gass: October 14, 1804
Arikara villages near present-day Mobridge — Patrick Gass: October 8, 1804
Arikara villages near present-day Mobridge — Patrick Gass: October 11, 1804
Missouri River near Cheyenne River — Patrick Gass: October 1, 1804
Missouri River near Cheyenne River — Patrick Gass: October 6, 1804
Missouri River near Cheyenne River — Patrick Gass: September 30, 1804
Missouri River near Cheyenne River — Patrick Gass: October 2, 1804
Missouri River near Cheyenne River — Patrick Gass: October 7, 1804
Missouri River near Big Bend — Patrick Gass: September 21, 1804
Missouri River near Big Bend — Patrick Gass: September 22, 1804
Patrick Gass: September 25, 1804
Teton Sioux confrontation near Pierre, SD — Patrick Gass: September 27, 1804
Teton Sioux confrontation near Pierre, SD — Patrick Gass: September 28, 1804
Missouri River near Big Bend — Patrick Gass: September 19, 1804
Missouri River near White River — Patrick Gass: September 13, 1804
Missouri River near White River — Patrick Gass: September 15, 1804
Calumet Bluff, meeting with Yankton Sioux — Patrick Gass: September 1, 1804
Missouri River near Niobrara River — Patrick Gass: September 3, 1804
Missouri River near Niobrara River — Patrick Gass: September 5, 1804
Prairie dog village near present-day Chamberlain — Patrick Gass: September 8, 1804
Prairie dog village near present-day Chamberlain — Patrick Gass: September 10, 1804
Spirit Mound, South Dakota — Patrick Gass: August 28, 1804
Calumet Bluff, meeting with Yankton Sioux — Patrick Gass: August 31, 1804
Missouri River near Arrow Rock — Patrick Gass: June 25, 1804
Missouri River near Jefferson City area — Patrick Gass: June 9, 1804
Missouri River near Osage River — Patrick Gass: June 8, 1804
Missouri River near Gasconade River — Patrick Gass: May 26, 1804
Missouri River near Gasconade River — Patrick Gass: May 27, 1804
Missouri River near Gasconade River — Patrick Gass: May 28, 1804
Missouri River near Gasconade River — Patrick Gass: May 29, 1804
Missouri River near Gasconade River — Patrick Gass: May 30, 1804
Missouri River near Tavern Cave — Patrick Gass: May 22, 1804
Missouri River near Tavern Cave — Patrick Gass: May 24, 1804
Patrick Gass: May 25, 1804
Lewis: up Marias River / Clark: down Yellowstone — Patrick Gass: July 20, 1806
Lewis: up Marias River / Clark: down Yellowstone — Patrick Gass: July 21, 1806
Lewis: up Marias River / Clark: down Yellowstone — Patrick Gass: July 19, 1806
Lewis: Great Falls / Clark: crossing to Yellowstone — Patrick Gass: July 13, 1806
Lewis: Great Falls / Clark: crossing to Yellowstone — Patrick Gass: July 14, 1806
Lewis: up Marias River / Clark: down Yellowstone — Patrick Gass: July 17, 1806
Lewis: up Marias River / Clark: down Yellowstone — Patrick Gass: July 18, 1806
Lewis: to Great Falls / Clark: to Three Forks — Patrick Gass: July 11, 1806
Lewis: to Great Falls / Clark: to Three Forks — Patrick Gass: July 12, 1806
Lewis: to Great Falls / Clark: to Three Forks — Patrick Gass: July 8, 1806
Lewis: to Great Falls / Clark: to Three Forks — Patrick Gass: July 9, 1806
Lewis: to Great Falls / Clark: to Three Forks — Patrick Gass: July 10, 1806
Lewis: to Great Falls / Clark: to Three Forks — Patrick Gass: July 5, 1806
Lewis: to Great Falls / Clark: to Three Forks — Patrick Gass: July 6, 1806
Lewis: to Great Falls / Clark: to Three Forks — Patrick Gass: July 7, 1806
Portaging Cascades of the Columbia upstream — Patrick Gass: April 7, 1806
Camp Chopunnish (Long Camp), waiting for snow to melt — Patrick Gass: June 1, 1806
Travelers’ Rest – party splits: Lewis north, Clark south — Patrick Gass: July 2, 1806
Portaging Cascades of the Columbia upstream — Patrick Gass: April 8, 1806
Portaging Cascades of the Columbia upstream — Patrick Gass: April 9, 1806
Travelers’ Rest – party splits: Lewis north, Clark south — Patrick Gass: July 1, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: April 2, 1806
Portaging Cascades of the Columbia upstream — Patrick Gass: April 3, 1806
Portaging Cascades of the Columbia upstream — Patrick Gass: April 5, 1806
Portaging Cascades of the Columbia upstream — Patrick Gass: April 4, 1806
Portaging Cascades of the Columbia upstream — Patrick Gass: April 6, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 4, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 1, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 3, 1806
Fort Clatsop, winter quarters — Patrick Gass: March 12, 1806
Departed Fort Clatsop, ascending Columbia River — Patrick Gass: April 1, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 13, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 1, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 2, 1806
Fort Clatsop, winter quarters — Patrick Gass: February 3, 1806
Patrick Gass: January 6, 1806
Clark’s party to see beached whale at Tillamook Head — Patrick Gass: January 10, 1806
Fort Clatsop, winter quarters — Patrick Gass: January 11, 1806
Fort Clatsop, salt works established — Patrick Gass: January 5, 1806
Fort Clatsop, salt works established — Patrick Gass: January 1, 1806
Fort Clatsop, salt works established — Patrick Gass: December 31, 1805
Fort Clatsop, salt works established — Patrick Gass: January 3, 1806
Fort Clatsop, salt works established — Patrick Gass: January 4, 1806
Fort Clatsop, salt works established — Patrick Gass: December 29, 1805
Patrick Gass: December 25, 1805
Fort Clatsop, salt works established — Patrick Gass: December 26, 1805
Fort Clatsop, salt works established — Patrick Gass: December 28, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 20, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 21, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 24, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 15, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 17, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 18, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 19, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 12, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 13, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 22, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 19, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 21, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 23, 1805
Patrick Gass: November 24, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 17, 1805
Patrick Gass: November 18, 1805
Columbia estuary, storm-bound, vote on winter camp — Patrick Gass: November 9, 1805
Columbia estuary, storm-bound, vote on winter camp — Patrick Gass: November 13, 1805
Columbia estuary, storm-bound, vote on winter camp — Patrick Gass: November 10, 1805
Columbia estuary, storm-bound, vote on winter camp — Patrick Gass: November 11, 1805
Columbia estuary, storm-bound, vote on winter camp — Patrick Gass: November 12, 1805
Columbia estuary, storm-bound, vote on winter camp — Patrick Gass: November 14, 1805
Columbia River tidewater, approaching estuary — Patrick Gass: November 6, 1805
Columbia River tidewater, approaching estuary — Patrick Gass: November 4, 1805
Columbia River tidewater, approaching estuary — Patrick Gass: November 5, 1805
Cascades of the Columbia, portage — Patrick Gass: November 2, 1805
Columbia River near Wallula Gap — Patrick Gass: October 19, 1805
Snake River rapids, near Lewiston — Patrick Gass: October 13, 1805
Snake River rapids, near Lewiston — Patrick Gass: October 14, 1805
Patrick Gass: October 16, 1805
Columbia River near Wallula Gap — Patrick Gass: October 18, 1805
Canoe Camp on Clearwater River — Patrick Gass: October 7, 1805
Clearwater to Snake River — Patrick Gass: October 8, 1805
Clearwater to Snake River — Patrick Gass: October 9, 1805
Snake River rapids, near Lewiston — Patrick Gass: October 10, 1805
Snake River rapids, near Lewiston — Patrick Gass: October 11, 1805
Canoe Camp on Clearwater River — Patrick Gass: October 3, 1805
North Fork Salmon River, impassable route — Patrick Gass: September 2, 1805
North Fork Salmon River, impassable route — Patrick Gass: September 3, 1805
Canoe Camp on Clearwater River — Patrick Gass: October 2, 1805
Camp Fortunate / Shoshone contact — Patrick Gass: August 16, 1805
Patrick Gass: August 17, 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — Patrick Gass: August 19, 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — Patrick Gass: August 21, 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — Patrick Gass: August 22, 1805
Jefferson/Beaverhead River near present-day Dillon — Patrick Gass: August 11, 1805
Patrick Gass: August 12, 1805
Camp Fortunate / Shoshone contact — Patrick Gass: August 13, 1805
Jefferson/Beaverhead River near present-day Dillon — Patrick Gass: August 9, 1805
Camp Fortunate / Shoshone contact — Patrick Gass: August 14, 1805
Jefferson River ascending toward divide — Patrick Gass: August 2, 1805
Jefferson River ascending toward divide — Patrick Gass: August 5, 1805
Jefferson/Beaverhead River near present-day Dillon — Patrick Gass: August 6, 1805
Great Falls Portage — Patrick Gass: June 27, 1805
Great Falls Portage — Patrick Gass: June 28, 1805
Great Falls Portage — Patrick Gass: June 29, 1805
Great Falls Portage — Patrick Gass: June 30, 1805
Great Falls Portage — Patrick Gass: June 21, 1805
Patrick Gass: June 22, 1805
Great Falls Portage — Patrick Gass: June 24, 1805
Great Falls Portage — Patrick Gass: June 25, 1805
Great Falls of the Missouri — Patrick Gass: June 14, 1805
Great Falls of the Missouri — Patrick Gass: June 18, 1805
Great Falls of the Missouri — Patrick Gass: June 19, 1805
Great Falls of the Missouri — Patrick Gass: June 15, 1805
Marias River decision camp — Patrick Gass: June 7, 1805
Marias River decision camp — Patrick Gass: June 10, 1805
Marias River decision camp — Patrick Gass: June 12, 1805
Patrick Gass: June 13, 1805
Marias River decision camp — Patrick Gass: June 11, 1805
Missouri River near Marias River approach — Patrick Gass: June 2, 1805
Patrick Gass: June 3, 1805
Marias River decision camp — Patrick Gass: June 4, 1805
Marias River decision camp — Patrick Gass: June 5, 1805
Missouri River, first view of Rocky Mountains — Patrick Gass: May 28, 1805
Missouri River, first view of Rocky Mountains — Patrick Gass: May 30, 1805
Patrick Gass: May 29, 1805
Missouri River, first view of Rocky Mountains — Patrick Gass: May 31, 1805
Missouri River near Marias River approach — Patrick Gass: June 1, 1805
Missouri River near Musselshell River — Patrick Gass: May 22, 1805
Missouri River near Musselshell River — Patrick Gass: May 23, 1805
Missouri River near Musselshell River — Patrick Gass: May 24, 1805
Missouri River near Musselshell River — Patrick Gass: May 25, 1805
Patrick Gass: May 26, 1805
Missouri River, first view of Rocky Mountains — Patrick Gass: May 27, 1805
Missouri River Breaks area — Patrick Gass: May 15, 1805
Missouri River Breaks area — Patrick Gass: May 16, 1805
Missouri River Breaks area — Patrick Gass: May 17, 1805
Missouri River Breaks area — Patrick Gass: May 18, 1805
Patrick Gass: May 19, 1805
Missouri River near Musselshell River — Patrick Gass: May 21, 1805
Yellowstone-Missouri confluence — Patrick Gass: April 27, 1805
Yellowstone-Missouri confluence — Patrick Gass: April 28, 1805
Missouri River near Little Missouri — Patrick Gass: April 19, 1805
Missouri River near Yellowstone approach — Patrick Gass: April 21, 1805
Missouri River near Yellowstone approach — Patrick Gass: April 22, 1805
Missouri River near Yellowstone approach — Patrick Gass: April 24, 1805
Missouri River near Little Missouri — Patrick Gass: April 13, 1805
Missouri River near Little Missouri — Patrick Gass: April 15, 1805
Missouri River near Little Missouri — Patrick Gass: April 17, 1805
Missouri River near Little Missouri — Patrick Gass: April 14, 1805
Departure from Fort Mandan, Missouri River — Patrick Gass: April 9, 1805
Departure from Fort Mandan, Missouri River — Patrick Gass: April 10, 1805
Departure from Fort Mandan, Missouri River — Patrick Gass: April 11, 1805
Departure from Fort Mandan, Missouri River — Patrick Gass: April 8, 1805
Patrick Gass: February 22, 1805
Fort Mandan, preparing for departure — Patrick Gass: February 23, 1805
Fort Mandan, preparing for departure — Patrick Gass: April 2, 1805
Fort Mandan, preparing for departure — Patrick Gass: April 3, 1805
Fort Mandan (winter) — Patrick Gass: January 21, 1805
Fort Mandan, preparing for departure — Patrick Gass: February 21, 1805
Fort Mandan, preparing for departure — Patrick Gass: February 19, 1805
Fort Mandan, preparing for departure — Patrick Gass: February 20, 1805
Fort Mandan (winter) — Patrick Gass: January 19, 1805
Fort Mandan (winter) — Patrick Gass: January 18, 1805
Fort Mandan, North Dakota — Patrick Gass: December 29, 1804
Fort Mandan, North Dakota — Patrick Gass: December 25, 1804
Fort Mandan, North Dakota — Patrick Gass: December 26, 1804
Fort Mandan, North Dakota — Patrick Gass: December 27, 1804
Fort Mandan, North Dakota — Patrick Gass: December 28, 1804
Fort Mandan, North Dakota — Patrick Gass: December 19, 1804
Fort Mandan, North Dakota — Patrick Gass: December 23, 1804
Fort Mandan, North Dakota — Patrick Gass: December 24, 1804
Fort Mandan, North Dakota — Patrick Gass: December 11, 1804
Fort Mandan, North Dakota — Patrick Gass: December 12, 1804
Fort Mandan, North Dakota — Patrick Gass: December 13, 1804
Fort Mandan, North Dakota — Patrick Gass: December 5, 1804
Fort Mandan, North Dakota — Patrick Gass: December 6, 1804
Fort Mandan, North Dakota — Patrick Gass: December 10, 1804
Fort Mandan, North Dakota — Patrick Gass: December 9, 1804
Fort Mandan, North Dakota — Patrick Gass: December 3, 1804
Fort Mandan, North Dakota — Patrick Gass: December 4, 1804
Fort Mandan, North Dakota — Patrick Gass: November 19, 1804
Fort Mandan, North Dakota — Patrick Gass: November 13, 1804
Fort Mandan, North Dakota — Patrick Gass: November 15, 1804
Fort Mandan, North Dakota — Patrick Gass: November 16, 1804
Patrick Gass: November 4, 1804
Fort Mandan, North Dakota — Patrick Gass: November 5, 1804
Fort Mandan, North Dakota — Patrick Gass: November 8, 1804
Building Fort Mandan — Patrick Gass: November 3, 1804
Missouri River near Vermillion area — Patrick Gass: August 22, 1804
Missouri River near Vermillion area — Patrick Gass: August 23, 1804
Patrick Gass: August 10, 1804
Missouri River near Little Sioux River — Patrick Gass: August 12, 1804
Missouri River near Little Sioux River — Patrick Gass: August 14, 1804
Patrick Gass: August 3, 1804
Missouri River near Soldier River — Patrick Gass: August 4, 1804
Missouri River near Soldier River — Patrick Gass: August 5, 1804
Missouri River near Soldier River — Patrick Gass: August 6, 1804
Near Platte River, Council Bluffs area — Patrick Gass: July 29, 1804
Council Bluffs, Iowa (first council site) — Patrick Gass: August 1, 1804
Council Bluffs, Iowa (first council site) — Patrick Gass: August 2, 1804
Council Bluffs, Iowa (first council site) — Patrick Gass: July 30, 1804
Council Bluffs, Iowa (first council site) — Patrick Gass: July 31, 1804
Missouri River near Platte River mouth — Patrick Gass: July 18, 1804
Missouri River near Platte River mouth — Patrick Gass: July 19, 1804
Missouri River near Platte River mouth — Patrick Gass: July 20, 1804
Near Platte River, Council Bluffs area — Patrick Gass: July 22, 1804
Near Platte River, Council Bluffs area — Patrick Gass: July 27, 1804
Near Platte River, Council Bluffs area — Patrick Gass: July 23, 1804
Missouri River near Platte River mouth — Patrick Gass: July 12, 1804
Missouri River near Platte River mouth — Patrick Gass: July 13, 1804
Missouri River near Platte River mouth — Patrick Gass: July 14, 1804
Missouri River near Platte River mouth — Patrick Gass: July 16, 1804
Missouri River near Platte River mouth — Patrick Gass: July 17, 1804
Missouri River near St. Joseph area — Patrick Gass: July 5, 1804
Missouri River near St. Joseph area — Patrick Gass: July 6, 1804
Missouri River near St. Joseph area — Patrick Gass: July 7, 1804
Missouri River near St. Joseph area — Patrick Gass: July 8, 1804
Missouri River near St. Joseph area — Patrick Gass: July 9, 1804
Missouri River near St. Joseph area — Patrick Gass: July 10, 1804
Missouri River near St. Joseph area — Patrick Gass: July 11, 1804
Mouth of Kansas River — Patrick Gass: June 30, 1804
Missouri River near Leavenworth area — Patrick Gass: July 1, 1804
Missouri River near Leavenworth area — Patrick Gass: July 2, 1804
Missouri River near Leavenworth area — Patrick Gass: July 3, 1804
Patrick Gass: July 4, 1804
Missouri River near Boonville area — Patrick Gass: June 19, 1804
Missouri River near Boonville area — Patrick Gass: June 20, 1804
Missouri River near Boonville area — Patrick Gass: June 21, 1804
Missouri River near Jefferson City area — Patrick Gass: June 13, 1804
Missouri River near Jefferson City area — Patrick Gass: June 14, 1804
Missouri River near Jefferson City area — Patrick Gass: June 15, 1804
Missouri River near Boonville area — Patrick Gass: June 16, 1804
Missouri River near Boonville area — Patrick Gass: June 17, 1804
Missouri River near Boonville area — Patrick Gass: June 18, 1804
Missouri River near Osage River — Patrick Gass: June 4, 1804
Missouri River near Osage River — Patrick Gass: June 5, 1804
Missouri River near Osage River — Patrick Gass: June 6, 1804
Missouri River near Jefferson City area — Patrick Gass: June 10, 1804
Patrick Gass: May 31, 1804
Missouri River near Osage River — Patrick Gass: June 2, 1804
Missouri River near Gasconade River — Patrick Gass: June 1, 1804
Rapid descent of Missouri, 70-80 miles/day — John Ordway: August 28, 1806
John Ordway: August 11, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — John Ordway: August 5, 1806
Lewis/Clark descending Missouri/Yellowstone to reunion — John Ordway: July 28, 1806
Lewis: up Marias River / Clark: down Yellowstone — John Ordway: July 20, 1806
Lewis: up Marias River / Clark: down Yellowstone — John Ordway: July 19, 1806
Lewis: Great Falls / Clark: crossing to Yellowstone — John Ordway: July 14, 1806
Waiting for Nez Perce guides at Weippe Prairie — John Ordway: June 21, 1806
Columbia near The Dalles, trading for horses — John Ordway: April 16, 1806
Overland to Walla Walla, council with Yelleppit — John Ordway: April 20, 1806
Overland to Walla Walla, council with Yelleppit — John Ordway: April 22, 1806
Fort Clatsop, winter quarters — John Ordway: March 22, 1806
Fort Clatsop, winter quarters — John Ordway: March 7, 1806
Fort Clatsop, winter quarters — John Ordway: February 17, 1806
Fort Clatsop, winter quarters — John Ordway: January 31, 1806
Fort Clatsop, winter quarters — John Ordway: February 1, 1806
Fort Clatsop, salt works established — John Ordway: January 3, 1806
Fort Clatsop, salt works established — John Ordway: December 27, 1805
Canoe Camp on Clearwater River — John Ordway: October 5, 1805
Canoe Camp on Clearwater River — John Ordway: September 26, 1805
Lemhi Valley, preparing to cross Bitterroots — John Ordway: August 28, 1805
Great Falls Portage — John Ordway: June 25, 1805
Great Falls Portage — John Ordway: June 27, 1805
Great Falls of the Missouri — John Ordway: June 15, 1805
Missouri River near Musselshell River — John Ordway: May 20, 1805
Departure from Fort Mandan, Missouri River — John Ordway: April 8, 1805
Fort Mandan, preparing for departure — John Ordway: March 19, 1805
Fort Mandan (winter) — John Ordway: February 9, 1805
Fort Mandan, North Dakota — John Ordway: December 30, 1804
Fort Mandan, North Dakota — John Ordway: December 21, 1804
Fort Mandan, North Dakota — John Ordway: December 13, 1804
Building Fort Mandan — John Ordway: November 3, 1804
Teton Sioux confrontation near Pierre, SD — John Ordway: September 26, 1804
Teton Sioux confrontation near Pierre, SD — John Ordway: September 27, 1804
Missouri River near White River — John Ordway: September 12, 1804
Missouri River near Niobrara River — John Ordway: September 6, 1804
Prairie dog village near present-day Chamberlain — John Ordway: September 8, 1804
Missouri River approaching Cannonball River — John Ordway: October 15, 1804
John Ordway: August 18, 1804
Missouri River near Cheyenne River — John Ordway: October 6, 1804
Arikara villages near present-day Mobridge — John Ordway: October 8, 1804
Arikara villages near present-day Mobridge — John Ordway: October 12, 1804
Missouri River near Cheyenne River — John Ordway: October 5, 1804
Missouri River near St. Joseph area — John Ordway: July 6, 1804
Missouri River near St. Joseph area — John Ordway: July 8, 1804
Missouri River near Platte River mouth — John Ordway: July 12, 1804
Missouri River near Boonville area — John Ordway: June 22, 1804
Missouri River near Jefferson City area — John Ordway: June 10, 1804
Missouri River near Osage River — John Ordway: June 4, 1804
Missouri River near Gasconade River — John Ordway: May 30, 1804
Nez Perce camps, reuniting with horses — Patrick Gass: May 1, 1806
Nez Perce camps, reuniting with horses — Patrick Gass: May 3, 1806
Nez Perce camps, reuniting with horses — Patrick Gass: May 4, 1806
Patrick Gass: May 8, 1806
Building and occupying Fort Clatsop — Patrick Gass: December 4, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 9, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 11, 1805
Fort Clatsop, salt works established — Patrick Gass: December 30, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 14, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 28, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 29, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 30, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 1, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 2, 1805
Building and occupying Fort Clatsop — Patrick Gass: December 3, 1805
Cascades of the Columbia, portage — Patrick Gass: October 31, 1805
Cascades of the Columbia, portage — Patrick Gass: November 1, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 26, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 27, 1805
Columbia River tidewater, approaching estuary — Patrick Gass: November 3, 1805
Patrick Gass: November 7, 1805
Columbia estuary, storm-bound, vote on winter camp — Patrick Gass: November 8, 1805
Exploring for winter camp site, south shore of Columbia — Patrick Gass: November 25, 1805
Celilo Falls and The Dalles portage — Patrick Gass: October 26, 1805
Cascades of the Columbia, portage — Patrick Gass: October 30, 1805
Celilo Falls and The Dalles portage — Patrick Gass: October 24, 1805
Celilo Falls and The Dalles portage — Patrick Gass: October 25, 1805
Celilo Falls and The Dalles portage — Patrick Gass: October 28, 1805
Cascades of the Columbia, portage — Patrick Gass: October 29, 1805
Canoe Camp on Clearwater River — Patrick Gass: October 4, 1805
Columbia River near Wallula Gap — Patrick Gass: October 21, 1805
Canoe Camp on Clearwater River — Patrick Gass: September 26, 1805
Canoe Camp on Clearwater River — Patrick Gass: September 29, 1805
Canoe Camp on Clearwater River — Patrick Gass: September 30, 1805
Canoe Camp on Clearwater River — Patrick Gass: October 1, 1805
Lemhi Valley, preparing to cross Bitterroots — Patrick Gass: August 30, 1805
Lemhi Valley, preparing to cross Bitterroots — Patrick Gass: August 29, 1805
North Fork Salmon River, impassable route — Patrick Gass: September 1, 1805
Nez Perce villages on Clearwater — Patrick Gass: September 24, 1805
Nez Perce villages on Clearwater — Patrick Gass: September 25, 1805
Missouri River near Little Missouri — Patrick Gass: April 20, 1805
Lemhi Valley, preparing to cross Bitterroots — Patrick Gass: August 26, 1805
Jefferson/Beaverhead River near present-day Dillon — Patrick Gass: August 10, 1805
Camp Fortunate, Sacagawea reunites with Cameahwait — Patrick Gass: August 20, 1805
Fort Mandan, preparing for departure — Patrick Gass: February 27, 1805
Fort Mandan, preparing for departure — Patrick Gass: April 1, 1805
Fort Mandan, preparing for departure — Patrick Gass: March 30, 1805
Fort Mandan, preparing for departure — Patrick Gass: March 31, 1805
Fort Mandan (winter) — Patrick Gass: January 31, 1805
Fort Mandan (winter) — Patrick Gass: February 1, 1805
Fort Mandan (winter) — Patrick Gass: February 4, 1805
Fort Mandan (winter) — Patrick Gass: February 3, 1805
Fort Mandan (winter) — Patrick Gass: February 5, 1805
Fort Mandan, preparing for departure — Patrick Gass: February 26, 1805
Fort Mandan (winter) — Patrick Gass: January 13, 1805
Fort Mandan (winter) — Patrick Gass: January 29, 1805
Fort Mandan (winter) — Patrick Gass: January 14, 1805
Fort Mandan (winter) — Patrick Gass: January 16, 1805
Fort Mandan (winter) — Patrick Gass: January 17, 1805
Fort Mandan (winter) — Patrick Gass: January 30, 1805
Fort Mandan, North Dakota — Patrick Gass: December 31, 1804
Fort Mandan (winter) — Patrick Gass: January 9, 1805
Fort Mandan (winter) — Patrick Gass: January 10, 1805
Fort Mandan (winter) — Patrick Gass: January 11, 1805
Fort Mandan, North Dakota — Patrick Gass: December 2, 1804
Fort Mandan, North Dakota — Patrick Gass: December 17, 1804
Fort Mandan, North Dakota — Patrick Gass: December 18, 1804
Fort Mandan, North Dakota — Patrick Gass: December 21, 1804
Fort Mandan, North Dakota — Patrick Gass: December 22, 1804
Fort Mandan, North Dakota — Patrick Gass: December 30, 1804
Fort Mandan, North Dakota — Patrick Gass: December 16, 1804
Fort Mandan, North Dakota — Patrick Gass: December 20, 1804
Fort Mandan, North Dakota — Patrick Gass: November 25, 1804
Fort Mandan, North Dakota — Patrick Gass: November 27, 1804
Fort Mandan, North Dakota — Patrick Gass: November 28, 1804
Fort Mandan, North Dakota — Patrick Gass: November 29, 1804
Fort Mandan, North Dakota — Patrick Gass: November 30, 1804
Fort Mandan, North Dakota — Patrick Gass: November 6, 1804
Fort Mandan, North Dakota — Patrick Gass: November 21, 1804
Fort Mandan, North Dakota — Patrick Gass: November 10, 1804
Fort Mandan, North Dakota — Patrick Gass: November 22, 1804
Patrick Gass: October 26, 1804
Building Fort Mandan — Patrick Gass: October 28, 1804
Building Fort Mandan — Patrick Gass: October 30, 1804
Building Fort Mandan — Patrick Gass: October 31, 1804
Building Fort Mandan — Patrick Gass: November 1, 1804
Missouri River approaching Cannonball River — Patrick Gass: October 19, 1804
Missouri River near Heart River, approaching Mandan — Patrick Gass: October 21, 1804
Missouri River approaching Cannonball River — Patrick Gass: October 20, 1804
Missouri River near Heart River, approaching Mandan — Patrick Gass: October 24, 1804
Missouri River near Cheyenne River — Patrick Gass: October 3, 1804
Missouri River near Cheyenne River — Patrick Gass: October 4, 1804
Missouri River near Cheyenne River — Patrick Gass: October 5, 1804
Missouri River approaching Cannonball River — Patrick Gass: October 15, 1804
Missouri River approaching Cannonball River — Patrick Gass: October 17, 1804
Lemhi Valley, preparing to cross Bitterroots — Joseph Whitehouse: August 28, 1805
Jefferson River ascending toward divide — Joseph Whitehouse: August 1, 1805
Great Falls Portage — Joseph Whitehouse: June 25, 1805
Missouri River Breaks area — Joseph Whitehouse: May 14, 1805
Fort Mandan, North Dakota — Joseph Whitehouse: December 17, 1804
Missouri River near White River — Joseph Whitehouse: September 16, 1804
Missouri River near White River — Joseph Whitehouse: September 12, 1804
Missouri River near White River — Joseph Whitehouse: September 15, 1804
Clark: August 14, 1806
Clark: August 12, 1806
Lewis: July 28, 1806
Lewis: July 15, 1806
Lewis: July 12, 1806
Lewis: July 10, 1806
Clark: July 1, 1806
Lewis: July 1, 1806
Clark: June 23, 1806
Lewis: June 23, 1806
Clark: June 24, 1806
Lewis: June 24, 1806
Clark: June 21, 1806
Lewis: June 21, 1806
Clark: June 7, 1806
Lewis: June 7, 1806
Clark: May 30, 1806
Lewis: May 30, 1806
Clark: April 22, 1806
Clark: April 23, 1806
Lewis: April 23, 1806
Lewis: April 16, 1806
Lewis: April 4, 1806
Lewis: April 5, 1806
Clark: April 5, 1806
Clark: April 4, 1806
Clark: March 11, 1806
Lewis: March 11, 1806
Lewis: March 1, 1806
Clark: February 28, 1806
Clark: March 1, 1806
Lewis: February 28, 1806
Clark: February 18, 1806
Lewis: February 18, 1806
Clark: February 19, 1806
Lewis: February 19, 1806
Clark: February 16, 1806
Lewis: February 16, 1806
Clark: February 17, 1806
Lewis: February 17, 1806
Clark: February 11, 1806
Lewis: February 11, 1806
Lewis: February 7, 1806
Clark: February 8, 1806
Lewis: February 8, 1806
Clark: February 5, 1806
Lewis: February 5, 1806
Clark: February 7, 1806
Clark: February 6, 1806
Lewis: February 6, 1806
Clark: February 3, 1806
Lewis: February 3, 1806
Clark: February 1, 1806
Lewis: February 1, 1806
Clark: January 12, 1806
Clark: January 10, 1806
Lewis: January 10, 1806
Lewis: January 8, 1806
Clark: January 7, 1806
Lewis: January 3, 1806
Clark: January 3, 1806
Clark: October 8, 1805
Clark: October 9, 1805
Lewis: August 7, 1805
Lewis: August 5, 1805
Lewis: August 6, 1805
Lewis: August 1, 1805
Lewis: August 2, 1805
Lewis: July 31, 1805
Lewis: July 12, 1805
Lewis: July 4, 1805
Lewis: July 2, 1805
Lewis: June 30, 1805
Lewis: June 28, 1805
Lewis: June 26, 1805
Lewis: June 27, 1805
Lewis: June 24, 1805
Lewis: June 25, 1805
Lewis: June 21, 1805
Clark: June 4, 1805
Clark: October 13, 1804
Clark: October 8, 1804
Lewis: September 16, 1804
Clark: September 15, 1804
Lewis: August 26, 1804
Clark: August 26, 1804
Clark: August 22, 1804
Clark: June 29, 1804
Lewis: May 26, 1804
William Clark: August 20, 1804
Wildlife (1)
Documents (1)
Cross-Narrator Analyses
Analyses that cite or discuss Patrick Gass — showing 24 of the most recent matches.
May 19, 1805
A Beaver, a Bear, and a Bleeding Newfoundland: Three Sergeants on the Missouri
The journal entries for May 19, 1805, offer a textbook case of how the enlisted journalists of the Corps of Discovery cross-pollinated…
November 20, 1805
A Belt of Blue Beads for a Sea Otter Robe
The journals of Patrick Gass and William Clark for November 20, 1805, describe the same camp on the south shore of the…
November 21, 1805
A Belt of Blue Beads for a Sea-Otter Robe
The entries for November 21, 1805, find the Corps wind-bound on the south shore of the Columbia estuary, unable to begin the…
April 10, 1806
A Bighorn Skin and a Broken Cord: Four Views of the Cascades Portage
The entries of April 10, 1806, find the Corps of Discovery laboring up the rapids below the Upper Cascades of the Columbia,…
February 11, 1805
A Birth at Fort Mandan, A Hunt on the Prairie: Divergent Lenses on February 11, 1805
February 11, 1805, at Fort Mandan. Two published journals in this corpus record the day: Meriwether Lewis and John Ordway. Patrick Gass…
September 30, 1804
A Boat That Rocked Like Medicine: Four Accounts of a Tense Teton Farewell
The entries for September 30, 1804 capture a single sequence of events — a lone Indian overtaking the boat, a riverside encounter…
January 31, 1805
A Boy’s Toes and a Hunter’s Pleurisy: Three Voices at Fort Mandan
The journal entries for January 31, 1805 offer an unusually clear demonstration of how rank, role, and writerly purpose shaped what each…
October 28, 1805
A British Musket on the Columbia: Three Views of a Wind-Bound Day
The expedition's progress on October 28, 1805, was halted within a few miles of starting. After loading canoes at sunrise and proceeding…
June 30, 1804
A Broken Mast and a Country Skipping with Deer
One River, Five MeasurementsThe day's central geographic event — passing the mouth of the Petite Platte (Little Shoal River) about ten miles…
May 4, 1805
A Broken Rudder, a Fortified Lodge, and Buffalo That Will Not Move
The Rudder and the Late StartEvery narrator opens with the same delay. The red pirogue's rudder irons, broken landing the previous evening,…
June 1, 1806
A Broken Voyage, a White Bear Skin, and a Missing Sergeant: Four Voices at Camp Chopunnish
The journal entries dated June 1, 1806 offer an unusual structural puzzle for readers of the expedition record. Three of the four…
May 29, 1805
A Buffalo in the Camp: Two Sergeants Recount a Near Disaster on the Missouri
The journal entries for May 29, 1805, offer a rare opportunity to compare two enlisted-man accounts of the same chaotic night and…
August 5, 1804
A Bull Snake, a Lost Knife, and a River Eating Itself
One Day, Five Pens, Five PrioritiesAugust 5, 1804 produces an unusually clear demonstration of how differently the expedition's narrators allocated attention. The…
June 11, 1805
A Cache, a Departure, and Two Patients on the Marias
The June 11 entries divide cleanly along a geographic seam. Lewis is gone — he set out at 8 A.M. with Drouillard,…
November 30, 1804
A Call to Arms at Fort Mandan: Three Accounts of the Sioux Raid Response
On 30 November 1804, the newly established garrison at Fort Mandan faced its first diplomatic-military test. A Mandan messenger crossed the half-frozen…
August 20, 1805
A Camp Divides: Lewis’s Cache and Clark’s Reconnaissance
August 20, 1805 is the first full day in which the captains' journals describe geographically separated activities, and the enlisted-men narrators line…
May 30, 1806
A Canoe Lost, a Chief Recovering: Four Voices from Camp Chopunnish
The journal entries for May 30, 1806, written from Camp Chopunnish on the Clearwater River, offer an unusually clean opportunity to compare…
October 14, 1805
A Canoe on the Rocks: Three Accounts of an October Wreck on the Snake
The wreck of a stern canoe in a Snake River rapid below the Palouse confluence produced one of the more vivid clusters…
October 8, 1805
A Canoe Sunk on the Rapid: Three Voices on the Wreck of October 8th
The wreck of Sergeant Patrick Gass's canoe in a rapid below the Clearwater encampment of October 8, 1805, is one of the…
July 31, 1805
A Captain Alone, A Crew Lamed: Convergence on the Jefferson
The entries for July 31, 1805 capture a moment of mild crisis on the Jefferson River: Captain Lewis, having pressed ahead the…
September 28, 1804
A Carrot of Tobacco and a Drawn Sword: Four Accounts of the Teton Standoff
September 28, 1804, below the Teton villages near present Pierre. The keelboat's anchor was lost in the sand the night before. When…
December 2, 1804
A Cheyenne Pipe at Fort Mandan: Three Registers of a Diplomatic Visit
The visit of four Cheyenne ("Shar-ha" / "Chien" / "Shian") emissaries to Fort Mandan, accompanying chiefs of the lower Mandan village, is…
June 25, 1804
A Coal Bank, a Creek of Many Names, and a Missing Flanking Party
The journals for June 25, 1804 cover a short stretch of the Missouri above Arrow Rock, with the party detained by fog…
December 14, 1804
A Cold Hunt Down River: Three Accounts of Clark’s Buffalo Search
The hunting expedition Captain William Clark led from Fort Mandan on December 14, 1804 produced three surviving accounts—one from Clark himself and…
From the Heacock Memorial Archive
4 lewis-clark.org articles that mention Patrick Gass, preserved here for Robert Heacock’s photography. The articles were written by that site’s contributing authors.
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