Mine detail: Grand Union

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Location: Gilpin County, Colorado, United States, North America
Lat / long: 39.91332, -105.54115
dep_id: 10118389
mas_id: 80470174
Commodity type: metallic
Major mineral: Gold
Trace mineral: Lead, Silver
Operation type: Underground
Development status: Past Producer
Reporter: Intermountain Field Operations Center (IFOC), Melton, Greg
References:
  • REF: USGS PROF PAPER 223 PLATE 3
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