Purcell, Roger L.Includes geological cross-section.Imprint: Indianapolis, Ind. : Indiana Geological Survey, 1970.Scale: 1:1,800,000; Dimensions: 31 x 22 cmCoordinates: W0880500 W0844700 N0414500 N0374600JPEGVAC3073-M-00975G4091 .C5 1970 .P87engIndiana. Geological SurveyPublicGeologyMap of Indiana showing bedrock geologyMapsIndianaIndiana1970Indiana University