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Geologic map of the Purdy Hill quadrangle, Mason County, Texas
Geology of the Purdy Hill quadrangle, Mason County, Texas
1 map : color ; 72 x 66 cm. folded to 27 x 22 cm. in envelope + text (11 pages)
Tx Doc number: Z, UA220.7, G292q, number 52.
Title on envelope: Geology of the Purdy Hill quadrangle, Mason County, Texas.
Geologic quadrangle map (University of Texas at Austin. Bureau of Economic Geology) ; no. 52