Twins Mines

The Twins Mines is a lead and zinc mine located in Saguache county, Colorado at an elevation of 10,751 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: Twins Mines
Secondary: Twins Mine

Commodity

Primary: Lead
Primary: Zinc

Location

State: Colorado
County: Saguache
District: Bonanza (Kerber Creek)

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
Operation Type: Underground
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: Sawatch Range, San Juan Volcanic Field, Rio Grande Rift

Type: L
Description: Bonanza Caldera

Alterations

Not available

Rocks

Name: Latite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene

Name: Latite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Analytical Data

Not available

Materials

Ore: Galena
Ore: Sphalerite

Comments

Comment (Location): MINE OR CLAIM LIES ALONG UNNAMED TRIBUTARY OF TUTTLE CR. ONE MILE SW OF FLAGSTAFF MTN. ; INFO FROM LAND.ST :1976

Comment (Deposit): RAWLEY ANDESITE AND BONANZA TUFF IN FAULT CONTACT. CALDERA CONCENTRIC FAULT TRENDS N 20 TO 25 W.

Comment (Workings): ONE SHAFT OF UNKNOWN DEPTH

References

Reference (Deposit): BURBANK, W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO: USGS PROF. PAPER 169, 166 P.

Reference (Deposit): MARRS, R.W., 1973, APPLICATION OF REMOTE-SENSING TECHNIQUES TO THE GEOLOGY OF THE BONANZA VOLCANIC CENTER: COLORADO SCHOOL OF MINES PH.D. THESIS T-1531

Reference (Location): BONANZA QUAD

Reference (Deposit): PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO: COLORADO GEOLOGICAL SURVEY BULL. 9, 136 P.

Reference (Deposit): BLM QUAD SW-11

Colorado Mining Photos

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