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41.

Silurian Reef Locations (Point): Indiana purdue

2003. Indiana Geological Survey. SILURIAN_REEF_POINTS_MM54_IN is a point shapefile that shows the locations of Silurian rock reef formations in Indiana. These data include five cat...

42.

Silurian Reef Locations (Polygon): Indiana purdue

2003. Indiana Geological Survey. SILURIAN_REEF_POLYGONS_MM54_IN is a polygon shapefile that shows the general locations of Silurian rock reef bank formations in Indiana. These data...

44.

Southern extent of glaciation: Indiana purdue

2010. Indiana Geological Survey. PRE-WISCONSIN_GLACIAL_LIMIT_IN.shp is a line shapefile that shows the extent of glaciation in Indiana as delineated by mapped glacial deposits of v...

45.

Springfield Coal Member Active Mines: Indiana purdue

2011. Indiana Geological Survey. COAL_MINE_ACTIVE_SPRINGFIELD_IN_2010 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of active surface and underground ...

46.

Springfield Coal Member Mined Out Areas: Indiana purdue

2010. Indiana Geological Survey. COAL_MINE_MINED_OUT_SPRINGFIELD_IN_2010 is a polygon-based ESRI ArcGIS shapefile that shows the location and extent of Springfield Coal Member mine...

47.

Structural Features: Indiana purdue

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 ...

48.

Surface Coal Mines: Indiana purdue

2017. Indiana Department of Natural Resources, Division of Reclamation and Indiana Geological Survey. COAL_MINE_SURFACE_DNR_IN.SHP provides the locations of all documented surface coal mines that have operated in the coal region of Indiana since the...