2013. Indiana Geological Survey. BEDROCK_GEOL_RGM_IN is a polygon shapefile that shows the bedrock geology of the state of Indiana, produced from the Indiana Geological Survey Regi... State of Indiana.
2013. Indiana Geological Survey. STRUCTURAL_FEATURES_IN.SHP is a line shapefile that shows the location of known structural features in Indiana. Attributes include the name of the ... State of Indiana.
2011. Indiana Geological Survey. In the past a series of reports on coal resources of selected counties in Indiana was published as part of the Special Report series of the Indiana... State of Indiana.