This mineral resource survey circular contains a resume of the results of a mineral resource survey of Bastrop County. The final reports and maps may be consulted, if more detailed information is desired, at the Bureau of Economic Geology, located at Main Campus, Geology Building, UT-Austin, Texas. The mineral resources examined are building stone, clay, lignite, and gravel. Additional information is given on geologic structure, river terraces, fossil localities, and water sands.