Detached from: Lower Peninsula, 1873-1876, accompanied by a geological map / C. Rominger. New York: Julius Bien, 1876. Vol. III. Prime meridian: [Washington, D.C.?]. "Atlas of Michigan 69A" written in pencil at bottom of map. 1 map: col.; 57 x 46 cm., folded to 15 x 22 cm. This map is in the public domain. Please attribute access and use of this digitized map to the Stephen S. Clark Library, University of Michigan Library.