Mine detail: Anna Lee Lode

Previously called ''

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Location

Lat / long:

38.17612, -105.31001

Resource(M)

Primary:	Thorium, REE
Ore:	Thorite
Gangue:	Barite, Galena, Hematite, Limonite, Pyrite, Quartz
Orebody form:	TABULAR
Discovery year:	1952

Production

Operation type:	Surface
Production size:	None
Development status:	Prospect

Geology

Host rock:	Hornblende-Plagioclase Gneiss And Alaskitic Granite Gneiss
Host type:	Gneiss,Syenite
Associated rock:	Biotite Granite
Associated type:	Granite
Structure:	Wet Mountains, Nw-Trending Shear Zones; Shearing Of Dikes
Tectonic:	Central Cordillera (Southern Rocky Mountains)
Alteration processes:	Altered Syenite And Basic Dikes Appear To Be Related To Mineralization

References

MRDS	D008875
DEP	10012882
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.20-22}{Deposit:: BROCK, M.R. AND SINGEWALD, 1968, GEOLOGIC MAP OF THE MOUNT TYNDALL QUADRANGLE, CUSTER COUNTY, COLORADO: USGS MAP GQ-596}{Deposit:: NELSON-MOORE, J.L., COLLINS, D.B., AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40P. 119}
Reporter	Collins, Donna B.