A. L. Stein Ranch Uranium Prospect

The A. L. Stein Ranch Uranium Prospect is a uranium mine located in Larimer county, Colorado at an elevation of 6,329 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: A. L. Stein Ranch Uranium Prospect
Secondary: Stein Ranch Uranium Prospect

Commodity

Primary: Uranium

Location

State: Colorado
County: Larimer
District: Horsetooth 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

Type: Surface

Ownership

Owner Name: A. L. Stein, R. C. Mc Call, Frank J. Yausse
Home Office: Fort Collins, Co.
Years: 1956 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
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

Form: IRREGULAR

Structure

Type: R
Description: Front Range Uplift, Cheyenne Basin

Type: L
Description: Big Thompson Anticline, Nw-Trending Faults

Alterations

Not available

Rocks

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

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

Analytical Data

Analytical Data: BACKGROUND RADIATION 0.015 MR/HR, RANGE 0.3 TO 1.0 MR/HR

Materials

Ore: Torbernite

Comments

Comment (Location): ON HILLSIDE NE OF REDSTONE CREEK. ; INFO FROM LAND.ST :1980

Comment (Deposit): OXIDIZED URANIUM OCCURS AS FRACTURE AND GRAIN COATINGS IN SMALL I RREGULAR ZONES IN RELATIVELY UNALTERED PEGMATITE CUTTING BIOTITE SCHIS T AND GRANODIORITE. VERTICAL JOINTS TRENDING N52 TO 80E DELIMIT MINERA LIZED ZONE BUT ARE NOT CONTINUOUS.

Comment (Workings): THREE BULLDOZED BENCH CUTS

References

Reference (Deposit): MALAN, R.C., AND CAMPBELL, G., 1956, AEC PRELIM. RECON. REPT. DAO-P -3-1852.

Reference (Deposit): NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENC ES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 208.

Reference (Deposit): COLTON, R.B., 1978, GEOLOGIC MAP OF THE BOULDER-FORT COLLINS-GREELE Y AREA, COLORADO: USGS MAP I-855-G.

Colorado Mining Photos

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