Hydraulic workings (114)

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Mine name Hydraulic workings
State Colorado
County Summit
Mineral Gold
Author Ransome, F.L.
Bench gravel on east side of the  Blue, looking  from Banner hydraulic workings toward north spur of Gibson Hill. Breckenridge  District. Summit  County,  Colorado. 1909. Published in Plate 13-B in U.S. Geological Survey Professional paper 75, 1911.
Caption Bench gravel on east side of the Blue, looking from Banner hydraulic workings toward north spur of Gibson Hill. Breckenridge District. Summit County, Colorado. 1909. Published in Plate 13-B in U.S. Geological Survey Professional paper 75, 1911.