Gannett, Henry, 1846-1914Julius Bien & Co., lithographer.King, Harry, (Harold G. R.), draftsman.McGee, W J, 1853-19121 map ; 53 x 81 cmShading indicates age of rock."Fifth annual report plate II"JPEGG 3701 .C5 1884 .M301366988639015091195233engPublicMap of the United States exhibiting the present status of knowledge relating to the areal distribution of geologic groupsMapsUnited StatesUniversity of Michigan