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Abandoning the Boats
March 23-April 28, 1806
On March 23 the Corps of Discovery took its leave of Fort Clatsop and began to travel up the Columbia River. During this leg of the journey, the men battled a strong current and frequently had to portage around the river's falls.
Chinookan Indians were a constant source of harassment; their repeated attempts to steal the expedition's supplies nearly provoked open hostilities many times.
Getting around all the falls proved too great a challenge, and less than a month after leaving Fort Clatsop the expedition abandoned its canoes, striking out overland for the mountains with horses acquired from the hospitable Walla Walla tribe.