Dover Copper Group

The Dover Copper Group is a copper mine located in Greenlee 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: Dover Copper Group
Secondary: Mines: Keating
Secondary: Dover
Secondary: Tucky
Secondary: Margot
Secondary: Goldbelt
Secondary: Bell Group
Secondary: St. Joe Group
Secondary: Anita Group
Secondary: Margot Group
Secondary: Tucky Group
Secondary: Gold Belt Group
Secondary: Keating Group

Commodity

Primary: Copper
Secondary: Silver
Secondary: Gold
Secondary: Lead

Location

State: Arizona
County: Greenlee
District: Copper Mountain 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

Owner Name: Dover Copper Mining Co ; Principal Owner: W. V. Tiscornia
Years: 1957 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1913
Year Last Production: 1945
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR

Structure

Type: R
Description: Ne Trending Diabasic And Granite Prophyry Dike Intrusives Into Quartzite And Limestones

Type: L
Description: Step-Faulting Along Veins In Locality

Alterations

Alteration Type: L
Alteration Text: Intensive Surface Oxidation To Unknown Depths And Formation Of Gossans

Rocks

Name: Quartz Monzonite
Role: Host
Age Type: Host Rock Unit
Age in Years: 55.200000+-1.700000
Age Young: Tertiary

Name: Diabase
Role: Associated
Age Type: Associated Rock Unit
Age in Years: 55.500000+-0.500000
Age Young: Tertiary

Name: Diabase
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Ordovician

Analytical Data

Not available

Materials

Ore: Malachite
Ore: Pyrite
Ore: Covellite
Ore: Chrysocolla
Ore: Chalcocite
Gangue: Kaolin
Gangue: Hematite
Gangue: Limonite

Comments

Comment (Development): OPERATORS INCLUDED AUTO SPECIALTIES MFG CO, GREGG DEGRAZIA, TOM COCKS, CLIFTON-MORENCI COPPER CO, KEATING COPPER SYNDICATE LTD, KEATING COPPER MINES, GRANT LEASING CO, DOVER COPPER MINING CO, CY GOMEZ AND PETE COBO, MOSCHETTI AND GOMEZ HAYNES AND CAMPBELL, PAETZEL AND BOKERIS, CESARIO GOMEZ, WM. J. KEATING, FRED W. SHERMAN, FRANK COX AND CO., M.A. HANNA MINING CO

Comment (Location): UTM AND GEODETIC COORDINATES GIVEN FOR KEATING MINE; KEATING MINE IS LOCATED 0.25 MILES SE OF WATER SPRING AT THE HEAD OF HORSESHOE GULCH AND LIES ON SHARED BORDER OF SECTIONS 6 AND 7; DOVER MINES ARE AND PETE COBO, MOSCHETTI AND GOMEZ, HAYNES AND CAMPBELL, PAETZEL AND BOKERIS, CESARIO GOMEZ, WM. J. KEATING, FRED W. SHERMAN, FRANK COX AND CO, M.A. HANNA MINING CO ; INFO FROM LAND.ST :(1973)

Comment (Deposit): 136 PATENTED CLAIMS OWNED BY DOVER COPPER MINING CO (1957); ABOVE DESCRIBES KEATING VEIN ON WHICH KEATING MINE IS LOCATED; DOVER MINES LOCATED ON WESTERN PRONG OF CORONADO VEIN

Comment (Workings): ABOVE DESCRIBES KEATING MINE; DEVELOPMENT OF KEATING MINE INCLUDED TWO 250 FT SHAFTS, THREE WINZES OF 10 TO 119 FT, SEVERAL TUNNELS; KEATING MINE WAS THE MOST PRODUCTIVE OF ALL MINES OWNED BY DOVER COPPER MINING CO.

Comment (Geology): ABOVE DESCRIBES KEATING DEPOSITS; GEOLOGY OF DOVER MINE DEPOSITS ASSOCIATED WITH THE CORONADO VEIN IS SIMILAR (SEE USGS PROFESSIONAL PAPER 43,1905); TUCKY MINE IS LOCATED ON A LATE TERTIARY REPLACEMENT VEIN IN THE LONGFELLOW LIMESTONE

Comment (Deposit): SEE ALSO: GOLD BELT MINES ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (Deposit): ABGMT-USBM FILE DATA

Reference (Deposit): BLM DISTRICT SHEET 840

Reference (Deposit): STEVENS, H.J., 1911, THE COPPER HANDBOOK, VOL. X, PAGE 616, CLIFTON MORENCI CO

Reference (Deposit): ABGMT CLIPPINGS FILE

Reference (Deposit): BENNETTI K.C., 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCIA METCALF DISTRICT, GREEN LEE COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA, 15.3 P.

Reference (Deposit): ARIZONA DEPRT OF MINERAL RESOURCES FILE DATA

Reference (Deposit): MINING REPORTER, VOL. LIII, NO. 16 (APRIL 19, 1906), PAGES 386-390, REVIVAL OF GOLD MINING IN CLIFTON-MORENCI, ARIZONA, DISTRICT

Reference (Deposit): USBM FILES, UNDER DOVER

Reference (Deposit): USGS PP 43, P. 344-345

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.