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The ore deposit occurs in the Anchor limestone. Clark County, Nevada. 1921. Anchor mine in S 1/2 sec. 23, T. 25 S., R. 58 E. The ore deposit occurs in the Anchor limestone. The ravine marks the position of a late normal fault. Bird Spring formation; Bullion dolomite member of Monte Cristo limestone; Anchor limestone member of Monte Cristo limestone. Clark County, Nevada. Circa 1921. Plate 38-B, with graphics, in U.S. Geological Survey. Professional paper 162. 1931. Categories: Image; Tags: Anchor Mine, Clark County, Nevada, Hewett, D.F. Collection, Mills, Mines, Quarries, Photographers, All tags... photo print, Fewer tags