1. Map of the United States exhibiting the present status of knowledge relating to the areal distribution of geologic groups Maps University Of Michigan Public content 1884. Gannett, Henry, 1846-1914, Julius Bien & Co., lithographer., King, Harry, (Harold G. R.), draftsman., and McGee, W J, 1853-1912. 1 map ; 53 x 81 cm Shading indicates age of rock. "Fifth annual report plate II".