Montezuma Mine

The Montezuma Mine is a gold and silver mine located in Pennington county, South Dakota at an elevation of 5,761 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: Montezuma Mine
Secondary: Red Jim
Secondary: Montezuma Nos. 3 To 7
Secondary: New Montezuma

Commodity

Primary: Gold
Primary: Silver

Location

State: South Dakota
County: Pennington
District: Rochford 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: Underground

Ownership

Owner Name: Black Hills Development And Financial Co.

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Replacement
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

Not available

Materials

Ore: Pyrite
Ore: Pyrrhotite
Gangue: Biotite
Gangue: Cummingtonite
Gangue: Ankerite
Gangue: Chlorite

Comments

Comment (Development): 6 CLAIMS ; ECON.COM: 50-TON, 20-STAMP AMALGAMATION MILL

Comment (Location): NEAR CENTER OF SECTION

Comment (Workings): 3 TUNNELS, 1 OVER 600 FT AND A 60 FT SHAFT

Comment (Geology): MINERALIZATION IS SIMILAR TO THAT IN OTHER GOLD PROPERTIES IN THE ROCHFORD DISTRICT

References

Reference (Deposit): U.S. BUREAU OF MINES, 1954, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688

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

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