Drew Hill Prospect

The Drew Hill Prospect is a beryllium mine located in Jefferson county, Colorado at an elevation of 7,940 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: Drew Hill Prospect
Secondary: Drew Hill Pegmatites Nos. 1 and 2

Commodity

Primary: Beryllium
Tertiary: Mica
Tertiary: Feldspar

Location

State: Colorado
County: Jefferson
District: Clear Creek Pegmatite Province

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: 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: TABULAR

Structure

Type: R
Description: Front Range Uplift, Denver Basin

Type: L
Description: Hurricane Hill Fault System, Unnamed Syncline

Alterations

Not available

Rocks

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

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

Name: Pegmatite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Neoproterozoic

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

Analytical Data

Not available

Materials

Ore: Muscovite
Ore: Chrysoberyl
Gangue: Tourmaline

Comments

Comment (Deposit): HANLEY AND OTHERS' DESCRIPTION GIVES TREND AS N 70 E, 63 NW, BUT ALL PEGMATITES IN SEC. 34 HAVE NW TREND. NE-TRENDING PEGMATITES MAPPED IN SECS. 02, 03, 10, AND 11, T 35, R 71 W

Comment (Workings): SHALLOW 10-FT-DIAM PIT

Comment (Location): ALONG DREW HILL ROAD ; INFO FROM LAND.ST :(1975)

Comment (Development): SOME MINERAL SPECIMENS RECOVERED

References

Reference (Deposit): USGS COMMODITY FILE, GP III, REEL 31, DOCKET 9933; GP III, REEL 40, DOCKET 12738; GP III, REEL 12, DOCKET 2701, 1946 (FROM ORIGINAL CRIB RECORD)

Reference (Deposit): HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-44: USGS PROF. PAPER 227, P. 85

Reference (Deposit): SHERIDAN, D.M., AND OTHERS, 1967, GEOLOGY AND URANIUM DEPOSITS OF THE RALSTON BUTTES DISTRICT, JEFFERSON COUNTY, COLORADO: USGS PROF. PAPER 520 (INCL. GEOLOGIC MAP OF RALSTON BUTTES QUAD).

Colorado Mining Photos

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