Pre-Cambrian rocks of Gunnison river, Colorado - Hunter, John Frederick, 1888-1917. (Washington, Govt. print. off., 1925)
At head of title: Department of the interior.
Issued also as thesis (Ph. D.) Johns Hopkins university, 1912.
Plates printed on both sides.
Keywords: Geology -- Colorado -- Gunnison River Valley; Geology, Stratigraphic -- Precambrian