Brown Lava Lode

The Brown Lava Lode is a uranium and copper mine located in Fremont county, Colorado at an elevation of 7,402 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: Brown Lava Lode  

State:  Colorado

County:  Fremont

Elevation: 7,402 Feet (2,256 Meters)

Commodity: Uranium, Copper

Lat, Long: 38.34167, -105.45000

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 Brown Lava Lode

Brown Lava Lode MRDS details

Site Name

Primary: Brown Lava Lode
Secondary: Pink Lady
Secondary: Serpant


Commodity

Primary: Uranium
Primary: Copper
Secondary: REE
Secondary: Thorium


Location

State: Colorado
County: Fremont
District: Mcclure Mountain, Iron Mountain 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

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Underground
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: Alkaline complexes


Orebody

Not available


Structure

Type: R
Description: Deweese Plateau, Wet Mountains

Type: L
Description: Ilse Fault, Other Major Nw-Trending Faults


Alterations

Alteration Type: L
Alteration: Argillic

Alteration Type: L
Alteration Text: Limonitic Alteration Occurred In The Syenite


Rocks

Name: Nepheline Syenite
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian

Name: Nepheline Syenite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cambrian

Name: Nepheline Syenite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cambrian


Analytical Data

Analytical Data: SAMPLES ASSAYED .019 AND .045 % CU AND .007 AND .027 %


Materials

Ore: Thorite
Gangue: Limonite


Comments

Comment (Location): ON DEWEESE PLATEAU ABOUT HALFWAY BETWEEN IRON MOUNTAIN AND MCCLURE MOUNTAIN . DMEA LISTS THIS AS BEING IN T20S, R71W, SECTIONS 17 AND 18; ALSO T20S, R72W, SECTION 13 ; INFO FROM LAND.ST :(1976)

Comment (Workings): TWO SHALLOW SHAFTS, SHALLOW PROSPECT PIT

Comment (Geology): THE SYENITIC HOST HAS BEEN FRACTURED AND WEATHERED TO A BROWN EARTHY MASS. MINERALIZATION OCCURS IN THE FRACTURE ZONES

Comment (Development): THERE ARE TWO SHALLOW SHAFTS ON THE PROPERTY AND A SHALLOW PROSPECT PIT.


References

Reference (Deposit): CHRISTMAN, R.A., HEYMAN, A.M., DELLWIG, L.F., GOTT, G.B., 1953, THORIUM INVESTIGATIONS 1950-52, WET MOUNTAINS, COLORADO: USGS CIRCULAR 290, 40 P.

Reference (Deposit): NELSON-MOORE, J.L., COLLINS, D.B. AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40, P. 145.

Reference (Deposit): TAYLOR, R.B., SCOTT, G.R., WOBUS, R.A. AND EPIS, R.C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE ROYAL GORGE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-869, 1:62,500.


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.