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Part of the Geologic Atlas of Texas, the Beaumont Sheet is an oversize color map that depicts the surface geology of Montgomery, San Jacinto, and Hardin Counties and parts of Madison, Trinity, Polk, Tyler, Jasper, Newton, Orange, Jefferson, Liberty, Harris, Waller, Grimes, Walker, and Robertson Counties. The 4-page booklet indicates geologic formations, abbreviations, and ages.
This Sheet is a memorial to the late Harold Norman Fisk, distinguished geologist who was associated with Humble Oil & Refining Company at the time of his death in 1964. Dr. Fisk, a specialist in Pleistocene and Recent geology of the southern United States, identified and named the Montgomery and Bentley Formations which are mapped on the Beaumont and Houston Sheets.
Shelby, C. A., Pieper, M. K., Aronow, S., Fisher, W. L., McGowen, J. H., and Barnes, V. E., 1992, Geologic Atlas of Texas, Beaumont Sheet: The University of Texas at Austin, Bureau of Economic Geology, Geologic Atlas Sheet, map scale 1:250,000.