La Colorado Mine

The La Colorado Mine is a lead mine located in Yuma county, Arizona.

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: La Colorado Mine
Secondary: Lincoln Mine
Secondary: Castle Dome Mine Group

Commodity

Primary: Lead
Secondary: Silver
Secondary: Fluorine-Fluorite
Tertiary: Barium-Barite
Tertiary: Molybdenum
Tertiary: Copper

Location

State: Arizona
County: Yuma
District: Castle Dome District

Land Status

Land ownership: Federal
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.
Administrative Organization: Kofa National Wildlife Refuge

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
Year First Production: 1901
Year Last Production: 1949
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Physiographic Detail: x

Mineral Deposit Model

Not available

Orebody

Form: LENSES, SPOTTY BUNCHES & POCKETS

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Silicification, Sericitization

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Analytical Data

Analytical Data: ABOUT 965 TONS OF ORE AVERGING 43% PB, AND 38 OZ/TON AG

Materials

Gangue: Calcite
Gangue: Barite
Unknown: Fluorite

Comments

Comment (Production): SOME FLUORSPAR ALSO SHIPPED

Comment (Development): PAST OPERATORS INCLUDE: HUDSON, LAGUNA, MODESTI; FORMERLY HELD BY E. LINCOLN IN 1930.

Comment (Workings): STOPING OPERATIONS FROM SHAFTS IN LATE 1800'S INTO EARLY 1900'S. ADD FILL AND DUMPS REWORKED IN THE LATE 1940'S.

Comment (Geology): PARTLY COVERED BY SURFACE GRAVELS, SOME VEINS COPPER STAINED.

Comment (Deposit): THIS RECORD CONTAINS DATA FROM DUPLICATE RECORD M899962 OF W. GERE WHICH HAS BEEN DELETED FROM MAIN MRDS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (Deposit): U.S.B.M. CARD FILE.

Reference (Deposit): WILSON, E.D., 1951, ARIZONA ZINC AND LEAD DEPOSITS: ARIZ. BUREAU OF MINES BULLETIN 134, P. 114.

Reference (Deposit): WILSON, E.D., 1933, GEOLOGY AND MINERAL DEPOSITS OF SOUTHERN YUMA COUNTY, ARIZONA: ARIZ. BUREAU OF MINES BULLETIN 134, P. 102.

Reference (Deposit): USBM-ABGMT PRODUCTION FILE DATA.

Reference (Deposit): USBM FILL DATA; CLUSTER #308; LA COLORADO GROUP.

Reference (Deposit): KEITH, S.B., 1978, INDEX OF MINING PROPERTIES IN YUMA COUNTY, ARIZONA; ARIZONA BUREAU OF MINES BULLETIN 192, P. 120.

Reference (Other Database): CIMRI

Reference (Production): WILSON, 1951.

Arizona Gold

"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.