Denison Group

The Denison Group is a manganese mine located in Coconino county, Arizona at an elevation of 6,860 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

Name: Denison Group

State:  Arizona

County:  Coconino

Elevation: 6,860 Feet (2,091 Meters)

Commodity: Manganese

Lat, Long: 34.57028, -111.33472

Map: View on Google Maps

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.


Satelite image of the Denison Group

Denison Group MRDS details

Site Name

Primary: Denison Group
Secondary: Black Diamond
Secondary: Mccloskey Claim
Secondary: Linesba Claim


Commodity

Primary: Manganese


Location

State: Arizona
County: Coconino
District: Long Valley District


Land Status

Not available


Holdings

Not available


Workings

Type: Surface/Underground


Ownership

Not available


Production

Year: 1929
Time Period: 1927 - 1929
Material type: ORE
Description: Cp_Grade: ^45 - 48 % Mn
Year: 1940
Material type: ORE
Description: Ap_Grade: ^40 % Mn


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Colorado Plateaus
Physiographic Section: Grand Canyon Section


Mineral Deposit Model

Not available


Orebody

Form: SEAMS, LENSES


Structure

Not available


Alterations

Not available


Rocks

Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Permian

Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian


Analytical Data

Not available


Materials

Ore: Psilomelane
Ore: Pyrolusite


Comments

Comment (Location): INFO FROM LAND.ST :01, 41?

Comment (Workings): THESE ARE THE DIMENSIONS OF THE LARGEST AND MOST PRODUCTIVE OF THE ACCESSIBLE OPEN PIT WORKINGS ON THE DENISON PROPERTY.

Comment (Deposit): DENISON PROPERTY COMPRISES NINE PATENTED CLAIMS. ; INFO.SRC : 1 PUB LIT

Comment (Production): ITEM 10 : TOTAL PRODUCTION OF DENISON PROPERTY FROM 1927 - 1954 .


References

Reference (Deposit): FARNHAM, L.L., AND STEWART, L.A., 1958, MANGANESE DEPOSITS IN WESTERN ARIZ.: USBM, INFORMATION CIRCULAR 7843, P. 7-10.

Reference (Deposit): JONES, E.L., JR., 1920, DEPOSITS OF MANGANESE ORE IN ARIZ.: USGS BULL. 710-D, P. 125-128.

Reference (Other Database): CIMRI

Reference (Production): USBM IC 7843


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