Mineral Resource Map
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Mine detail: Early Spring
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North America
United States
Colorado
Boulder
Previously called ''
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Location
Lat / long:
39.98388, -105.46448
Resource(M)
Primary:
Tungsten
Production
Operation type:
Underground
Development status:
Past Producer
Geology
References
MAS
80130265
DEP
10166179
Reference
REF USGS PROF PAPER 223 PLATE 3
Reporter
Melton, Greg, Intermountain Field Operations Center (IFOC)