TY - RPRT TI - The Conterminous United States Mineral Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Silver City 1° x 2° quadrangle, New Mexico and Arizona AU - Donald H. Richter AU - B. B. Houser AU - K. C. Watts AU - D. P. Klein AU - W. N. Sharp AU - Harald Drewes AU - D. C. Hedlund AU - G. L. Raines AU - J.R. Hassemer PY - 1987 DO - 10.3133/cir975 UR - https://pubs.usgs.gov/publication/cir975 ID - cir975 ER -