00833cam a22002531a 4500 gs 58000146 DLC 20260227111406.0 821223s1957 miuab s000 0 eng gs 58000146 (OCoLC)13231393 DLC MnU OCoLC DLC premarc n-us-mi QE126.O37 M3 Martin, Helen M. (Helen Mandeville), 1889-1973. Outline of the geologic history of Ogemaw County / Helen M. Mandeville. [Lansing, Mich. : Michigan Dept. of Conservation, Geological Survey Division, 1957] [12] p. : ill., maps ; 28 cm. Cover title. Geology Michigan Ogemaw County. Geology, Stratigraphic. Michigan. Geological Survey Division. 29235 29235