msha
3 records
MSHA Mine: Blackhawk Mine
Underground | M | Gold Ore | Sierra, NM | Abandoned | employees
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MSHA Mine: Oro Plata Mill
Facility | M | Silver Ore | Sierra, NM | Abandoned | employees
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MSHA Mine: Arrowhead Placers
Surface | M | Gold Ore | Sierra, NM | Abandoned | employees
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