G.W. Colton. "Dakota." [map of Wisconsin on verso]. From National Atlas.
Philadelphia: O.W. Gray & Son, ca. 1875. 15 x 12. Lithograph. Original hand color. Very good condition.
A nicely detailed map of showing counties, towns, canals, roads, railroads & topography by the Philadelphia firm of O.W. Gray and Son. The firm began its publishing around mid-century and produced regional and U.S. atlases up to the 1880s. This map is typical of their work, and its attractive presentation and interesting detail make it a nice example of late nineteenth century Philadelphia cartography.