History of the expedition under the command of Lewis and Clark,
to the sources of the Missouri River, thence across the Rocky Mountains and down the Columbia River to the Pacific Ocean, performed during the years 1804-5-6, by order of the government of the United States.

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Item Link Original Source
Full view   v.1 University of Michigan
Full view   v.2 University of Michigan
Full view   v.3 Harvard University
Full view   v.3 University of Michigan
Full view   v.4 Harvard University