Gannett, Henry, 1846-1914Geological Survey (U.S.)1 map : col. ; 47 x 70 cmShows state boundaries, principal cities, and water features."U.S. Geological Survey. J. W. Powell, Director.""Engraved by U.S.G.S."JPEGG 3701 .A1 1899 .G300008159939015091195175engPublic[Base Map of United States]MapsUnited Statesapproximately 1896University of Michigan