Lewis and Clark Expedition Map 1804 - 1806
\"Lewis and Clark Expedition Historical Map\" (poster) National Imagery and Mapping Agency, ca. 2003. Facsimile of \"Lewis and Clark's Track Across the Western Portion of North America from the Mississippi to the Pacific Ocean: by order of the executive of the United States in 1804, 5 & 6, copied by Samuel Lewis from the original drawing of Wm. Clark; Saml. Harrison, fct.\" 1814
