Mines AND mineral resources, COLORADO El Moro dirt. History; prospecting. R. I.. News. Roar. 27, 1877 p.4 c.3 Silver shipped to bank. R. Iv?. News. Aug. 5,. 1877 p.4 c.1 Coke manufacture; shipments. R.M.News.New Yrs.Ed.Jan.1881 p.19 c.4 Superior smelting coal; history; tests. R.M.News.New Yrs.Ed.Jan.1881 p.8 c.2 Progress of coke making. R. ICI. News. Mar. 3, 1881 p.4 c.3
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