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Journal entry · July 31, 1805

Jefferson River ascending toward divide — Patrick Gass: July 31, 1805

Patrick Gass · Jefferson River ascending toward divide · Thwaites Vol. Gass 1807 First Edition

The place today: Jefferson River ascending toward divide

morning with dew. Last night Capt. Lewis went on ahead,
and the canoes being unable to get on to him, he was obliged
to encamp out alone in this howling wilderness. We passed
a small creek this morning on the south side, which empties
into the river, through 2 or 3 mouths, on account of its being
much dammed up by the beaver, which are very plenty. At
breakfast time we came up to Capt. Lewis; and having made
17 miles and three quarters, encamped on an island.

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The NPS atlas for this night

right (south) shore of Jefferson River, mouth of Antelope Creek, MT

NPS campsite reconstruction (Bergantino)

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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