Lincoln: University of Nebraska Press, 1983-1999. Twelve volumes, including atlas. Plates and maps. Folio. Original cloth, in dust jackets. Without the index (vol. 13). Very good. Item #WRCAM52599
The definitive scholarly edition of the famed Lewis and Clark journals, with copious notes, botanical material, and maps. This set is entirely first editions, including the very hard to obtain first edition of the atlas.