Lemhi Shoshone
Nation / Tribe

Lemhi Shoshone

The Lemhi Shoshone (Agaidika, or "Salmon Eaters") inhabited the Lemhi River valley and surrounding mountains in present-day east-central Idaho, occupying a critical geographic position at the Continental Divide. Their encounter with the expedition in August 1805 was one of the most consequential of the entire journey: Chief Cameahwait, who turned out to be Sacagawea's brother, agreed to provide horses and guides essential for the expedition's crossing of the Bitterroot Mountains. Lewis and Clark found the Lemhi Shoshone lacking guns and metal goods but rich in geographic knowledge and horsemanship, and desperately eager to obtain firearms to defend themselves against Blackfeet and Hidatsa raiding parties. The reunion between Sacagawea and her people remains one of the most dramatic episodes in the expedition's narrative.

Portrait: Wikimedia Commons / Wikipedia: Lemhi Shoshone (Chief Tindoor, NARA)

0 treaties 20 total items 10 mapped locations

Most Mentioned in Lemhi Shoshone-tagged Entries

Wildlife

  1. deer (3)
  2. antelope (1)
  3. Mountain Rams (1)
  4. Salmon (1)
  5. weasels (1)
  6. otter (1)
  7. large kind of fish (1)
  8. fresh water Salmon (1)
  9. buffalow (1)
  10. Elk (1)

Biography

The Lemhi Shoshone were the specific band of Northern Shoshone, led by Chief Cameahwait, who encountered the expedition at the Continental Divide in August 1805. They were Sacagawea’s birth people — the band from which she had been captured as a child.

The Lemhi Shoshone lived in the Salmon River country of present-day central Idaho, a resource-rich but geographically isolated region. They possessed many horses but few guns, making them vulnerable to raids by the better-armed Blackfeet and Hidatsa.

The band’s decision to trade horses to the expedition — influenced heavily by Sacagawea’s reunion with her brother Cameahwait — was one of the most consequential moments of the journey. Without Shoshone horses, the expedition could not have crossed the Rocky Mountains.

The Lemhi Shoshone were later removed from their ancestral lands and placed on the Fort Hall Reservation in southeastern Idaho in 1907 — a removal they have contested ever since.

Territory & Encounter Locations

Pin color = Planning (1801–1804) Westward (1804–1805) Fort Clatsop (1805–1806) Return (1806) Post (1806–1812)
Master expedition route Approximate territory

Note: the longest gap between tagged appearances is about 9 months (Nov 4, 1804 → Jul 28, 1805). No journal entries during that window were explicitly tagged with this nation.

Old Hwy 28 to Lemhi Pass
Lemhi Pass
Old Hwy 28 to Lemhi Pass
Follow the historic Lewis & Clark Trail along Old Hwy 28 to Lemhi Pass in Salmon, Idaho. This 20.9-mile journey offers spectacular mountain views and rich frontier history.
20.9 mi · 4,764 images · Salmon, ID

Cross-Narrator Analyses

Analyses that cite or discuss Lemhi Shoshone — showing 7 of the most recent matches.

Figure: Lemhi Shoshone

The Lemhi Shoshone: Horse Lords of the Continental Divide

A Nation Glimpsed Long Before They Were MetThe Lemhi Shoshone — the band of Northern Shoshone inhabiting the headwaters of the Missouri…

August 30, 1805

Departure from the Shoshone: Four Accounts of a Pivotal Crossing

The entries of August 30, 1805, capture the Corps of Discovery at a hinge point: having bartered for a horse herd in…

November 24, 1805

How Two Sergeants Recorded the Same Vote — November 24, 1805

The vote at Station Camp on November 24, 1805 is among the most cited moments in the journals — usually quoted from…

Figure: Cameahwait

Cameahwait: The Lemhi Shoshone Chief Who Traded Horses

First Contact in the MountainsCameahwait — chief of a band of Lemhi Shoshone encountered west of the Continental Divide in August 1805…

Figure: Jean Baptiste Charbonneau

Jean Baptiste Charbonneau: The Infant Traveler of the Corps of Discovery

Birth at Fort MandanJean Baptiste Charbonneau entered the expedition record on February 11, 1805, when his mother Sacagawea gave birth at Fort…

Figure: Flathead Salish

The Flathead Salish: Allies in the Bitterroot

First Encounter at Ross's HoleThe Flathead Salish — called "Tushepaws," "Flatheads," or "Ootlashshoots" in the journals — first entered the expedition's record…

Figure: Toussaint Charbonneau

Toussaint Charbonneau: The Interpreter Who Brought Sacagawea

IntroductionToussaint Charbonneau appears in the journals of Lewis and Clark less as a celebrated figure than as a constant, often troublesome, presence.…

From the Heacock Memorial Archive

3 lewis-clark.org articles that mention Lemhi Shoshone, preserved here for Robert Heacock’s photography. The articles were written by that site’s contributing authors.

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