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Publications by Helper, M.A.

Title Publication Year Abstract Author Series Publisher
Geologic map of the Grit quadrangle, Mason County, Texas Geologic map of the Grit quadrangle, Mason County, Texas 2021 Hunt, B.B., Johnson, B., Helper, M.A. Open-File Map Bureau of Economic Geology
Geology and Historical Mining, Llano Uplift Region, Central Texas Geology and Historical Mining, Llano Uplift Region, Central Texas 2000 Caran, S.C., Helper, M.A., Kyle, J.R. Austin Geological Society Austin Geological Society