Journal entry · October 1, 1804
Missouri River near Cheyenne River — Patrick Gass: October 1, 1804
Patrick Gass · Missouri River near Cheyenne River · Thwaites Vol. Gass 1807 First Edition
The place today: Missouri River near Cheyenne River
morning was cloudy but the wind fair and we sailed rapidly.
At 9 we passed the river De Chirn, or Dog river; a large river
that comes in on the south side. A short distance above this
river, the sand bars are so numerous, that we had great diffi-
culty to get along; and encamped on one in the middle of the
river. There were some French traders on the other bank of
the river, and one of them came over and remained with us all
night.
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The NPS atlas for this night
bar 4½ mi NE of Cheyenne River, SD
NPS campsite reconstruction (Bergantino)
About 15.6 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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