Indianapolis sheet. 1979 edition. Transverse Mercator projection. Geology compiled by H. H. Gray (Indiana) and J. A. Lineback (Illinois) from published and original sources ... Prepared for publication by H. H. Gray. Drafted by R. L. Purcell. Indianapolis Geological Survey , in cooperation with Illinois State Geological Survey. "Note: In addition to the complete geologic map of this quadrangle, which shows both bedrock and unconsolidated deposits, separate parts depicting the two main elements of the areal geology are available: Part A shows only bedrock, Part B shows only unconsolidated deposits. The explanation, columnar and cross sections, and marginal information are the same on the separate parts as on the complete map." Base compiled in 1976 from U.S.G.S. 7 1/2' topographic quadrangle maps.
Imprint: [Bloomington] : Indiana Geological Survey, 1979
Dimensions: 66 x 102 cm