Fort Crawford, Prairie du Chien, by Seth Eastman

Completed in 1829, this small pencil sketch of Fort Crawford, Prairie du Chien, is Eastman’s earliest extant drawing of a U.S. military fort.

Gift of the Estate of Belle J. Bushnell, 1941. Courtesy of the Peabody Museum of Archaeology and Ethnology, Harvard University, 41-72-10/80.