00796cam a22002291 4500 gs 19000330 DLC 20260227111323.0 760409s1918 xx 000 0 eng gs 19000330 (OCoLC)2105183 DLC TxEU DLC premarc QE91 .A4 no. 13 Patton, Horace Bushnell, 1858-1929. Geology and ore deposits of the Platoro-Summitville mining district, Colorado, by Horace B. Patton, 1917. Denver, Col., Eames bros. state printers, 1917 [1918] 122 p. illus., XI pl. (part fold.) incl. front., maps (3 in pocket) 23 cm. Colorado Geological Survey. Bulletin, 13 Geology, Economic. Geology Colorado. 25949 25949