The field work on which this report is based was done during October and November, 1936. It consisted of the mapping by reconnaissance methods of the areas of outcrop of the formations over as large a portion of the county as possible, followed by the detailed mapping of the area west of Elkhart with the plane table. This work was supplemented by coring with hand tools.

As the areal geology of Anderson County is very well illustrated on the geologic map of Texas published by the United States Geological Survey, no copy of the reconnaissance mapping is included in this report. A map showing the results of the plane table work is available for examination at the office of the Bureau of Economic Geology, Main Campus, Geology Building, UT-Austin.