Published by United States Geological Survey., 1987
Seller: Eryops Books, Stephenville, TX, U.S.A.
Map
No Binding. Condition: Very Good. Two (2) large folded sheets in printed envelope; includes topographic map showing sample localities and with 6 additional inset maps; tables summarizing mineral deposits and occurrences for silver, gold, barium, copper, molybdenum, lead, tungsten and zinc, and assay data for gold, silver, copper, lead and zinc; 19 figures showing numerous maps of mine workings; description of geology and economic geology, and references cited; ex-corporate library; in very good condition. Map.