| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 123 Cooper, J.R. & L.T. Silver (1964), Geology and ore deposits of the Dragoon quadrangle, Cochise Co., AZ, USGS PP 416. Cooper, J.R. & L.C. Huff (1951), Geological investigations and geochemical prospecting experiment at Johnson, AZ, Econ.Geol.: 46: 731-756 |
Johnson Mine, Johnson Camp, Gunnison Copper Project, Cochise Mining District, Cochise County, Arizona, USA