Bedrock geology of Indiana, from the Regional Geologic Map Series of the Indiana Geological Survey: Indiana
Description
BEDROCK_GEOL_RGM_IN is a polygon shapefile that shows the bedrock geology of the state of Indiana, produced from the Indiana Geological Survey Regional Geologic Map series, which was mapped at a scale of 1:250,000. The mapped stratigraphic units include selected systems, groups, and formations. Additional attributes were included from derivative products of the "Compendium of Paleozoic rock-unit stratigraphy in Indiana������a revision: Indiana Geological Survey Bulletin 59 (1986)." The names of some groups, formations, and members on some of the maps have been updated to reflect the most recent nomenclature.
Indiana. Geological Survey (2013). Bedrock geology of Indiana, from the Regional Geologic Map Series of the Indiana Geological Survey: Indiana. . http://maps.indiana.edu/previewMaps/Geology/Bedrock_Geology_RGM_250K.html (dataset)