Colorado Central mine. Georgetown district Proposed buildings; mill; machinery 1885 p.1 c.2 Producing ore. Erects compressor building. , 1885 p.3 c.1 Accident to miner; Golden Gate concentrator works ore. R.M.News. Aug. 30, 1885 p.4 c.2 Golden Gate concentrator works ore. R.M.News. Sept. 3, 1885 p.3 c.1 Building Improvements; dump pickers wages; Hull mill Aug. shipment; mill run. R.M.News. Selbt. 7, 1885 p.7 c.3 0
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