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Journal entry · April 21, 1805
Missouri River near Yellowstone approach — Patrick Gass: April 21, 1805
Patrick Gass · Missouri River near Yellowstone approach · Thwaites Vol. Gass 1807 First Edition
The place today: Missouri River near Yellowstone approach
morning, but cold: there was a sharp frost. We saw a great
number of elk, buffaloe and deer on both sides of the river.
About 12 the wind again rose and was disagreeable, but we
continued our voyage. Two of our hunters went out this
afternoon and caught three young buffaloe calves. We passed
a small river called White Clay river on the North side and
having gone 15 miles encamped on the South side.
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The NPS atlas for this night
right shore, 2 mi S of Williston, ND
NPS campsite reconstruction (Bergantino)
About 15.7 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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