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Journal entry · May 17, 1805
Missouri River Breaks area — Patrick Gass: May 17, 1805
Patrick Gass · Missouri River Breaks area · Thwaites Vol. Gass 1807 First Edition
The place today: Missouri River Breaks area
The hills here come very close to the river on both sides, and
have very little timber on them. They are very high and much
washed. There are some of them which at a distance resem-
ble ancient steeples. We passed two rivers one on each side.
During the whole of this day’s voyage the Missouri was very
handsome, and about 300 yards wide. We made 20 1-4 miles
and encamped on the South side.
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The NPS atlas for this night
right shore, 27 mi west of Hell Creek, MT
NPS campsite reconstruction (Bergantino)
About 21.6 miles of travel mapped this day (NPS’s reconstruction of the course)
From the NPS Lewis and Clark National Historic Trail Park Atlas, mirrored here on September 21, 2026. This copy is not authoritative; NPS remains the system of record. About the mirror
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