Mines and mineral resources, Colorado. Castle Rock district New discovery, mineral. R. M. News, Feb. 1, 1883 n. 3 c. 1 Prospecting; panning; water scarcity for placer mining. F. II. News, May 29, 1_884 p.4 c. 4 Castle Rock min. & Buckeye mining. companies, placer mining. R. M. News,. June 6, 1884, n. 6 c.
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