Great Plains Studies, Center for


Date of this Version



Published in Great Plains Quarterly 16:3 (Summer 1996). Copyright © 1996 Center for Great Plains Studies, University of Nebraska-Lincoln.


The publication in 1814 of Nicholas Biddle's edition of the explorations of Lewis and Clark was accompanied by a remarkable map. This chart, drafted by Samuel Lewis from an 1810 manuscript map by William Clark, synopsized the expedition's many detailed route maps across the continent, plus significant post-expeditionary information. l This landmark document was the first to portray the Missouri River valley in a realistic configuration, and it set the stage for modern conceptions of the heartland of the continent.