Mine detail: Pine Tree Claim

Previously called 'Greenwood Property'

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Location

Lat / long:

38.18668, -105.29001

Resource(B)

Primary:	Thorium
Secondary:	Barium-Barite
Ore:	Barite, Thorite
Gangue:	Fluorite, Galena, Limonite, Pyrite, Quartz, Specularite
Discovery year:	1952

Production

Operation type:	Underground
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Hornblende-Plagioclase Gneiss And Alaskitic Granite Gneiss
Host type:	Gneiss
Structure:	Wet Mountains, Nw-Trending Shear Zones
Tectonic:	Central Cordillera (Southern Rocky Mountains)

References

MRDS	D008866
DEP	10012878
Reference	{Deposit:: CHRISTMAN, R.A., HEYMAN, A.M., DELLWIG, L.F, AND GOTT, G.B., 1953, THORIUM INVESTIGATIONS 1950-52, WET MOUNTAINS, COLORADO: USGS CIRCULAR 290, P. 17-19.}{Deposit:: CHRISTMAN, R.A., BROCK, M.R., PEARSON, R.C., AND SINGEWALD, Q.D., 1959, GEOLOGY AND THORIUM DEPOSITS OF THE WET MOUNTAINS, COLORADO, A PROGRESS REPORT: USGS BULLETIN 1072-H, P. 525-526}{Deposit:: BROCK, M.R. AND SINGEWALD, Q.D., 1968, GEOLOGIC MAP OF THE MOUNT TYNDALL QUADRANGLE, CUSTER COUNTY, COLORADO: USGS MAP GQ-596, 1:24,000}
Reporter	Collins, Donna B.