Minnie May Group

The Minnie May Group is a gold and silver mine located in Custer county, South Dakota at an elevation of 5,561 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: Minnie May Group  

State:  South Dakota

County:  Custer

Elevation: 5,561 Feet (1,695 Meters)

Commodity: Gold, Silver

Lat, Long: 43.77861, -103.64972

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 Minnie May Group

Minnie May Group MRDS details

Site Name

Primary: Minnie May Group


Commodity

Primary: Gold
Primary: Silver


Location

State: South Dakota
County: Custer
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/Underground


Ownership

Owner Name: Extreme Gold Mining And Milling Co.


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
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

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Schist
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Name: Schist
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic


Analytical Data

Analytical Data: 100 TONS OF ORE ASSAYED AT $5.00 PER TON YIELDED ONLY $1.50 A TON.


Materials

Ore: Gold
Ore: Silver
Gangue: Serpentine
Gangue: Quartz


Comments

Comment (Development): 10 PATENTED CLAIMS TOTALING 185 ACRES ; ECON.COM: 10 STAMP MILL

Comment (Workings): THE 50 FOOT SHAFT INTERSECTS THE VEIN AT 40 FT. THERE ARE SEVERAL OPENCUTS.

Comment (Location): N 1/2, CENTRAL

Comment (Deposit): QUARTZ VEIN

Comment (Production): DATE UNKNOWN


References

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

Reference (Deposit): ROBERTS, W.L., AND RAPP, GEORGE, 1965, MINERALOGY OF THE BLACK HILLS, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY BULLETIN 18

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


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