Tolen, James R."Modified from Regional Geologic Map Series, Indiana Geological Survey." Includes insets of "Thickness of unconsolidated materials" and "Distribution of surface tills."Imprint: [Bloomington, Ind.] : The Survey, 1979.Dimensions: 31 x 22 cm; Scale: 1:1,900,000Coordinates: W0880500 W0844700 N0414500 N0374600JPEGVAC3073-M-00675G4091 .C5 1979 .I5engIndiana. Geological SurveyPublicSediments (Geology)GeologyMap of Indiana showing unconsolidated depositsMapsIndiana1979Indiana University