Since the expedition left Fort Mandan in the beginning of April, they had not met any Indians. July 27, 1805. Lewis: we begin to feel considerable anxiety with rispect to the Snake Indians. if we do not find them or some other nation who have horses I fear the successful issue of our voyage will be very doubtfull or at all events much more difficult in it's accomplishment. ... however I still hope for the best, and intend taking a tramp myself in a few days to find these yellow gentlemen if possible. Photo: Nez Perce National Historical Park, courtesy of the National Park Service.

More from the journals about the Bitterroot Mountains August 10, 1805. Lewis: the river below the mountains is rapid rocky, very crooked, much divided by islands and withal shallow. after it enters the mountain it's bends are not so circuetous and it's general course more direct, but it is equally shallow less[s] divided more rocky and rapid.

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