Delay Adit and Lloyd Shaft

The Delay Adit and Lloyd Shaft is a fluorine-fluorite mine located in Chaffee county, Colorado at an elevation of 7,680 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: Delay Adit and Lloyd Shaft

Commodity

Primary: Fluorine-Fluorite
Tertiary: Manganese

Location

State: Colorado
County: Chaffee
District: Browns Canyon 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

Type: Surface/Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Year First Production: 1927
Year Last Production: 1949
Discovery Year: 1923
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: Fluorspar deposits (fluorite veins)

Orebody

Not available

Structure

Type: R
Description: Southern Mosquito Range, Arkansas Valley Graben

Type: L
Description: Folds, Faults; N-Trending Fault Bounding Arkansas Valley

Alterations

Alteration Type: L
Alteration Text: Silicification, Fluoritization, Argillization

Rocks

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

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

Analytical Data

Analytical Data: CONCENTRATES AVERAGING

Materials

Ore: Fluorite
Gangue: Montmorillonite
Gangue: Opal
Gangue: Pyrolusite
Gangue: Manganite
Gangue: Quartz
Gangue: Hematite
Gangue: Pyrite
Gangue: Barite
Gangue: Psilomelane
Gangue: Goethite
Gangue: Calcite
Gangue: Kaolinite

Comments

Comment (Development): Workings explore partly mineralized breccia zones along the main fault zone NW of Colorado-American mine.

Comment (Location): ABOUT 1/2 MILE EAST OF US HWY 285 AT HECLA JUNCTION; SW/4 SEC. 27, T 51 N, R 8 E. INFO FROM LAND.ST :(1981)

References

Reference (Deposit): VAN ALSTINE, R.E. AND COX, D.C., 1969, FLUORSPAR MINES AND PROSPECTS, IN, GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS NE QUADRANGLE, CHAFFEE COUNTY, COLORADO: USGS PROFESSIONAL PAPER 626, P. 38-43

Reference (Deposit): BRADY, B.T., 1975, MAP SHOWING FLUORSPAR DEPOSITS IN COLORADO: USGS MAP MR-70, 1:500,000, TEXT

Reference (Deposit): Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.

Reference (Deposit): VAN ALSTINE, R.E., 1969, GEOLOGY AND MINERAL DEPOSITS OF THE PONCHA SPRINGS NE QUADRANGLE, CHAFFEE COUNTY, COLORADO: USGS PROFESSIONAL PAPER 626, 52 P.

Colorado Mining Photos

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