McKinnon and Miller's Claim

The McKinnon and Miller's Claim is a feldspar, mica, and tungsten mine located in Pennington county, South Dakota at an elevation of 5,200 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: McKinnon and Miller's Claim

Commodity

Primary: Feldspar
Primary: Mica
Primary: Tungsten

Location

State: South Dakota
County: Pennington
District: Unorganized District

Land Status

Land ownership: National Forest
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: Black Hills National Forest

Holdings

Not available

Workings

Type: Surface

Ownership

Not available

Production

Not available

Deposit

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

Physiography

General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Black Hills

Mineral Deposit Model

Not available

Orebody

Form: DIKE

Structure

Not available

Alterations

Not available

Rocks

Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

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

Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: WOLFRAMITE IS 71.4% FEW04 AND 28.6% MNW04

Materials

Ore: Wolframite
Ore: Feldspar
Ore: Muscovite
Gangue: Quartz
Gangue: Garnet
Gangue: Tourmaline

Comments

Comment (Location): SE 1/4

Comment (Development): 1 UNPATENTED CLAIM OF APPROXIMATELY 20 ACRES

Comment (Deposit): A SECOND DIKE PARALLEL TO THE OTHER DIKE, LIES 100 FT TO THE WEST. IT IS THINNER BUT RELATIVELY RICHER THAN THE MAIN PEGMATITE.

Comment (Workings): NUMEROUS SMALL TEST PITS SCATTERED ALONG THE STRIKE FOR 200 FEET

Comment (Geology): WOLFRAMITE OCCURS AS SMALL SEGREGATIONS IN A PEGMATITE DIKE, AND IS ASSOCIATED WITH QUARTZ AND GARNET.

References

Reference (Deposit): U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707

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