most important were those in the Central City district, Colorado, from which about 300 tons of high-grade...Cliff mine, Wyoming; the Jesse D No. 1 and No. 2 claims, Utah; and the Merry Widow mine, New Mexico. Since...Ochos mines, Colorado; the Early Day and Buckhorn claims, Nevada; the Midnite and Daybreak mines, Washington;...deposits in the Dripping Spring quartzite, Gila County, Ariz. According to Nininger (1954, p. 43), as...areas in Saxony; the Beaverlodge district, Canada; the Cornwall district, England; the Guarda and adjacent |