Illinois

Boulder County, Colorado, United States

Tungsten Gold Silver

Land & claims · BLM · live

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BLM MLRS ↗Claims at this point ↗Surface mgmt ↗

Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.

Commodities

PrimaryTungsten

TertiaryGold, Silver

Commodity typeMetallic

Deposit

Deposit typeTungsten Veins

Model46: W veins

Materials

Ore mineralsFerberite

Geology

Host rockGranite

Economic & production

Development statusPast Producer

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References

MINE MAP REPO # 402533-402540 402543U.S. Bureau of Mines, 1945, Boulder County Tungsten District, Boulder County, Colorado: U.S. Bureau of Mines War Minerals Report 404, 22 p.Colorado Metal Mining Fund Board, 1960, Tungsten Mines of Colorado: State of Colorado Metal Mining Fund Board, 76 p.Lovering, T.S., and Goddard, E.N., 1950, Geology and ore deposits of the Fraont Range, Colorado: USGS Prof. Paper 223, 319 p.Lovering, T.S., and Tweto, Ogden, 1953, Geology and ore deposits of the Boulder County tungsten district, Colorado: USGS Prof. Paper 245, 199 p.SHARPS, 1965, Tungsten in Colorado: COLO SCH MINES MIN IND BULL, V. 8, NO. 5, 16 p.

Identification

Deposit ID10304503

MRDS IDDC00102

RegionNA

Data scoreB

Coordinates39.96956, -105.52583