Mountain Goat

The Mountain Goat is a uranium mine located in Boulder county, Colorado at an elevation of 10,098 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

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.

Site Name

Primary: Mountain Goat

Commodity

Primary: Uranium
Tertiary: Copper
Tertiary: Molybdenum

Location

State: Colorado
County: Boulder
District: Caribou District

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: Past Producer
Deposit Type: Vein
Operation Type: Unknown
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

Not available

Orebody

Not available

Structure

Type: R
Description: Front Range Uplift, Boulder Creek Batholith

Type: L
Description: Caribou Stock, Eldora-Bryan Mtn Stock

Alterations

Not available

Rocks

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

Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: BACKGROUND RADIATION 0.02 MR/HR, RANGE 0.02 TO 1.0 MR/HR. SAMPLE ASSAYED 0.01 TO 0.2 % EQUIV U3O8.

Materials

Ore: Chalcopyrite
Ore: Molybdenite
Gangue: Hematite
Gangue: Fluorite

Comments

Comment (Location): ON MIDDLE FORK OF NORTH BOULDER CREEK ; INFO FROM LAND.ST :(1976)

Comment (Development): IN 1956, MINE PRODUCED 4 TONS ORE AT GRADE OF 0.11% U3O8, YIELDING 8 LB U3O8

Comment (Deposit): RADIOACTIVITY ASSOCIATED WITH COARSE-GRAINED BIOTITE IN PEGMATITE AND ALONG JOINTS AND FRACTURES IN GNEISS AND PROBABLY ASSOCIATED WITH PROMINENT FAULT TRENDING N 60 W.

References

Reference (Deposit): LOVERING, T.S., AND GODDARD, E.N., 1950, GEOLOGY AND ORE DEPOSITS OF THE FRONT RANGE, COLORADO: USGS PROF. PAPER 223, P. 197-202, PL. 2.

Reference (Deposit): NELSON-MOORE, J.L., COLLINS, D.B., AND HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: COLORADO GEOLOGICAL SURVEY BULL. 40, P. 85

Reference (Deposit): MOORE, F.B., AND OTHERS, 1957, GEOLOGY AND URANIUM DEPOSITS OF THE CARIBOU AREA, BOULDER COUNTY, COLORADO: USGS BULL. 1030-N

Colorado Mining Photos

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