SGMC polygons for unit TXMD;0, Barnett Formation, Chappel Limestone, Houy, Zesch, Bear Spring, and Stribling Formations, and Pillar Bluff Limestone, undivided

Polygons of the specified geologic unit are provided below as a zipped shapefile. Only a few, simple attributes are included here. Coordinates are geographic with horizontal datum WGS84.

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