Silurian Reef Locations (Polygon): Indiana
- 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 include two major reef bank areas, known as the "Fort Wayne bank area" and the "Terre Haute bank area." This shapefile can be used in conjunction with SILURIAN_REEF_POINTS_MM54_IN.
- Indiana, United States
- Geoscientific Information and Geology
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