Denton Mine

The Denton Mine is a manganese mine located in Greenlee county, Arizona at an elevation of 4,301 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: Denton Mine
Secondary: Black Butte Mine
Secondary: Thurston and Hardy Mine
Secondary: Godfrey Mine
Secondary: Sanders Manganese Mine

Commodity

Primary: Manganese
Tertiary: Gypsum-Anhydrite

Location

State: Arizona
County: Greenlee
District: Ash Peak 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: Raymond And G.T. Godfrey (Ace Building And Roofing Supplies-

Production

Year: 1955
Time Period: 1952 - 1955
Description: Cp_Grade: ^39.3 % Mn
Year: 1918
Time Period: 1917 - 1918
Description: Cp_Grade: ^45 % Mn

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1917
Discovery Year: 1917
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: LENSES, STRINGERS

Structure

Type: R
Description: Steep Northerly Trending Zones Of Shearing And Brecciation In Brownish Red Basalt Overlain By Light Pink Rhyolite

Type: L
Description: 2 Roughly Parallel Shear Zones Separated By Highly Altered Basalt Of Varying Thickness; Manganese Deposits Confined To Basalt

Alterations

Alteration Type: L
Alteration Text: Basalt Is Extensively Decomposed And Is Altered In The Shear Zones To A Crunbly And Clayey Material; Cavitites And Vesicles Of Basalt Are Filled With A White Mineral Of Secondary Origin; Surface Oxidation To Unknown Depths

Rocks

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Volcanic Rock (Aphanitic)
Role: Associated
Age Type: Host Rock
Age Young: Pliocene

Analytical Data

Not available

Materials

Ore: Pyrolusite
Ore: Psilomelane
Gangue: Calcite
Gangue: Limonite
Gangue: Gypsum

Comments

Comment (Deposit): TWO SHEAR ZONES, 1500 FT APART, WHICH CUT THE BASALT AND PERHAPS THE RHYOLITE, BUT NO ORE HAS BEEN FOUND IN THE RHYOLITE. NORTH SHEAR ZONE, N70W, DIPS STEEPLY SOUTH, IS 1500 FT LONG, THE SOUTH SHEAR ZONE STRIKES N55-80W AND DIPS 70 NE. THE MINERALIZED LENGTH OF THIS ZONE IS 2000 FT, AND IS 10 FT WIDE. VEINS REACH MAXIMUM WIDTH OF 14 INCHES

Comment (Workings): DEVELOPMENT INCLUDED 2 SHALLOW OPEN CUTS 1200 FT APART ON THE NORTHERN SHEAR ZONE; 2 SHAFTS WITH DEPTHS OF 30 FT AND 84 FT ON THE EAST END OF THE SOUTHERN SHEAR ZONE; SEVERAL OPEN CUTS AND DRIFTS ALONG THE SOUTHERN SHEAR ZONE; 1 SHAFT 60 FT DEEP ON THE WEST END OF THE SOUTHERN SHEAR ZONE; TRENCHING FOR MANGANIFEROUS FLOAT; REWORKING OF OLD TAILINGS

Comment (Geology): ORE WAS PRIMARILY MINED FROM BOTH ENDS OF THE SOUTHERN SHEAR ZONE; VEIN WALLS ACCOMPANIED BY GANGUE OR GOUGE OF RHYOLITE WALL ROCK; SECONDARY ENRICHMENT ALONG FISSURES IS BELIEVED TO HAVE OCCURRED FROM BELOW THE ORE DEPOSITS; MANGANESE CONTENT INCREASES WITH DEPTH (TO DEPTHS OF 30-60 FT), THEN RAPIDLY DECREASES

Comment (Deposit): SHOULD NOT BE CONFUSED WITH THE HARDY SHAFT AND HARDY GROUP ON THE ASH PEAK AND ASH PEAK EXTENSION PROPERTIES (HARDY GROUP ORIGINALLY PART OF THURSTON AND HARDY CLAIMS BUT WERE LATER TAKEN OVER BY ASH PEAK EXTENSION MINING CO); SEE ALSO: A-1 CLAIMS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Development): OPERATORS INCLUDED HAROLD SHARP, M.T. SANDERS (OWNER, 1940-1951) ASH PEAK MINING CO (1954-1955), WILLIAM ALLISON (ALLISON STEEL CO), WOOTAN AND MCGAVEN, JOHN POSPOHOLA (PART OWNER), ASH PEAK MANGANESE CO; 26 UNPATENTED CLAIMS INCLUDING THE A-1 CLAIMS OF PARADISE AND SPW IN GRAHAM COUNTY

Comment (Location): 2 MILES NE OF ASH PEAK SUMMIT; SEE: GODFREY MINES. ; INFO FROM LAND.ST :(1973)

References

Reference (Deposit): JONES, E.L. JR. AND RANSOME, F.L., 1920 , DEPOSITS OF MANGANESE ORE IN ARIZONA: U.S.G.S. BULLETIN 710-D, P. 130.

Reference (Deposit): WILSON, E.D. AND BUTLER, G.M., 1930 , MANGANESE ORE DEPOSITS IN ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 127 , P. 62.

Reference (Deposit): FARNHAM, L.L., STEWART, L.A., AND DELONG, C.W., 1961 , MANGANESE DEPOSITS OF EASTERN ARIZONA: U.S.B.M. INFORMATION CIRCULAR 7990 , P. 99.

Reference (Deposit): USBM FILES, DENTON CLAIMS.

Reference (Deposit): ARIZONA DEPT OF MINERAL RESOURCES FILE DATA; DENTON MINE (SANDERS; THURSTON AND HARDY); HARDY MINE, BLACK BUTTE MINE.

Reference (Deposit): ABGMT CLIPPINGS FILE; DENTON MANGANESE MINE, HARDY MINE, SANDERS MINE, THURSTON MANGANESE PROPERTY.

Reference (Production): U.S.G.S. BULLETIN 710-D; U.S.B.M. I.C. 7990

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.