Maps showing mineral resource assessment for porphyry and stockwork deposits of copper, molybdenum, and tungsten and for stockwork and disseminated deposits of gold and silver in the Butte 1⁰ x 2⁰ quadrangle, Montana
Maps showing mineral resource assessment for porphyry and stockwork deposits of copper, molybdenum, and tungsten and for stockwork and disseminated deposits of gold and silver in the Butte 1⁰ x 2⁰ quadrangle, Montana / U.S. Department of the Interior, U.S. Geological Survey ; by J.E. Elliott [and others].
Series Titles:
Miscellaneous investigations series map ; I-2050-F Miscellaneous investigations series (Geological Survey (U.S.)) ; I-2050-F.
Variant Titles:
Porphyry, stockwork, and disseminated deposits, Butte 1⁰ x 2⁰ quad., MT