View of the Rocky Mountains, on the Platte, 50 miles from their base: Account of An Expedition From Pittsburgh to the Rocky Mountains, Performed in the Years 1819 and 1820...Under the Command of Major Stephen H. Long. From the Notes of Major Long, Mr. T. Say, and Other Gentlemen of the Exploring Party. Compiled by Edwin James ... In Two Volumes. - With An Atlas. Philadelphia: H.C. Carey & I. Lea, Chestnut St. 1823. (with) Account of An Expedition From Pittsburgh to the Rocky Mountains, Performed in the Years 1819 and 1820 ... Maps and Plates. Philadelphia: H.C. Ca