Anna Lee Lode

The Anna Lee Lode is a thorium and ree mine located in Custer county, Colorado at an elevation of 8,999 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Anna Lee Lode  

State:  Colorado

County:  Custer

Elevation: 8,999 Feet (2,743 Meters)

Commodity: Thorium, REE

Lat, Long: 38.17611, -105.30944

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Anna Lee Lode

Anna Lee Lode MRDS details

Site Name

Primary: Anna Lee Lode


Commodity

Primary: Thorium
Primary: REE


Location

State: Colorado
County: Custer
District: Wet Mountains Area


Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Lee Jones, Westcliffe, Co. And Lawrence Knobbe, Spearville, Ks


Production

Not available


Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Surface
Discovery Year: 1952
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains


Mineral Deposit Model

Model Name: Thorium-rare-earth veins


Orebody

Form: TABULAR


Structure

Type: R
Description: Wet Mountains

Type: L
Description: Nw-Trending Shear Zones; Shearing Of Dikes


Alterations

Alteration Type: L
Alteration Text: Altered Syenite And Basic Dikes Appear To Be Related To Mineralization


Rocks

Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Paleoproterozoic

Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Paleoproterozoic

Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic


Analytical Data

Analytical Data: .22 TO 1.2% EQUIV. U, .003 TO .007% U, 1.20 TO 6.68 % EQUIV. TH02, 3.81 TO 6.96% TH02, .03 TO 1.53% RAE OXIDES


Materials

Ore: Thorite
Gangue: Hematite
Gangue: Barite
Gangue: Quartz
Gangue: Galena
Gangue: Limonite
Gangue: Pyrite


Comments

Comment (Location): 0.75 MILES WEST OF STATE ROUTE 143 ON JONES RANCH ; INFO FROM LAND.ST :1976

Comment (Deposit): MINERALIZATION EXPOSED ONLY IN SHALLOW PITS

Comment (Workings): PITS AND TRENCHES


References

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

Reference (Deposit): BROCK, M.R. AND SINGEWALD, 1968, GEOLOGIC MAP OF THE MOUNT TYNDALL QUADRANGLE, CUSTER COUNTY, COLORADO: USGS MAP GQ-596

Reference (Deposit): NELSON-MOORE, J.L., COLLINS, D.B., AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40P. 119


Colorado Mining Photos

Placer mines at Cripple Creek, Colorado ca. 1892

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.