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1by Barnes, Virgil E. (Virgil Everett), 1903-1998“...Geologic quadrangle map (University of Texas at Austin. Bureau of Economic Geology) ;...”
Published 1965
Map -
2by Barnes, Virgil E. (Virgil Everett), 1903-1998“...Geologic quadrangle map (University of Texas at Austin. Bureau of Economic Geology) ;...”
Published 1967
Map -
3by Barnes, Virgil E. (Virgil Everett), 1903-1998“...Geologic quadrangle map (University of Texas at Austin. Bureau of Economic Geology) ;...”
Published 1964
Map -
4by Barnes, Virgil E. (Virgil Everett), 1903-1998“...Geologic quadrangle map (University of Texas at Austin. Bureau of Economic Geology) ;...”
Published 1965
Map -
5by Barnes, Virgil E. (Virgil Everett), 1903-1998“...Geologic quadrangle map (University of Texas at Austin. Bureau of Economic Geology) ;...”
Published 1952
Map -
6by Barnes, Virgil E. (Virgil Everett), 1903-1998“...Geologic quadrangle map (University of Texas at Austin. Bureau of Economic Geology) ;...”
Published 1952
Map -
7