USGS CROWN KING QUADADMR CROWN KING MINE FILELINDGREN W ORE DEPOSITS OF THE JEROME AND BRADSHAW MTN QUADSUSGS BULL 782 1926 P 168GUITERAS J R GOLD MINING AND MILLING IN THE BLACK CANYONAREA USBM 1C 6905 1936 P 39ARIZONA MINING JOURNAL JULY 1918 P 2LKOSCHMANN A H AND M H BERGENDAHL PRINCIPAL GOLD PRODUCINGDISTRICTS OF THE U S USGS PP 610 1968 P 50ALLEN M A VANADIUM AZBM BULL 115 1921 P 13