Account of an Expedition from Pittsburgh to the Rocky Mountains: Performed in the Years 1819 and 1820 ; by Order of the Hon. J.C. Calhoun, Secretary of War, Under the Command of Maj. S.H. Long, of the U.S. Top. Engineers, Volume 3

Jan. 1823 · Longman, Hurst, Rees, Orme, and Brown

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1823 account of a major government sponsored expedition to the Western lands, by steamboat down the Ohio, then up the Mississippi and Missouri rivers, intending to reach Yellowstone. The team's botanist and geologist Edwin James compiled the account from the journals of its commander Maj. Long, Thomas Say and other members of the party. The expedition produced the first scientific data on the flora and fauna of the general area of the Santa Fe Trail.