Published by United States Geological Survey., 1970
Seller: Eryops Books, Stephenville, TX, U.S.A.
No Binding. Condition: Very Good. Large folded sheet consisting of geologic map superposed on topographic contours and with metamorphic isograds, two cross-sections, and a columnar section with description of units; in printed envelope; ex-corporate library; in very good condition. Map.