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Experimental Mine tunnel
Arthur Lakes Library Colorado Digitization Project Russell L. and Lyn Wood Mining History Archive
Arthur Lakes Library
Colorado Digitization Project
Russell L. and Lyn Wood Mining History Archive
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Date
1972
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Abstract
Photograph of the CSM Experimental Mine (Edgar Mine) showing rail tracks, and an ore cart in the far background. The Edgar Mine in Idaho Springs, Clear Creek County, Colorado produced high grade silver and gold, lead and copper in the 1870s. The Big Five Mining Company leased the property to the Colorado School of Mines for educational purposes in 1921. The School eventually acquired the Mine and additional workings to develop the Colorado School of Mines Experimental Mine as an underground classroom for engineering education and as a research facility. The Edgar's workings include the Miami Tunnel, the Edgar Shaft following the old Edgar vein, and the Big Five Tunnel.
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