Swilley Gulch Bog Iron Deposit

The Swilley Gulch Bog Iron Deposit is a iron mine located in Lawrence county, South Dakota at an elevation of 5,600 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: Swilley Gulch Bog Iron Deposit  

State:  South Dakota

County:  Lawrence

Elevation: 5,600 Feet (1,707 Meters)

Commodity: Iron

Lat, Long: 44.14944, -103.75778

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 Swilley Gulch Bog Iron Deposit

Swilley Gulch Bog Iron Deposit MRDS details

Site Name

Primary: Swilley Gulch Bog Iron Deposit


Commodity

Primary: Iron


Location

State: South Dakota
County: Lawrence
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

Not available


Ownership

Not available


Production

Not available


Deposit

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


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: Alluvium
Role: Host
Age Type: Host Rock
Age Young: Holocene

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


Analytical Data

Not available


Materials

Ore: Goethite
Ore: Limonite


Comments

Comment (Production): BETWEEN 1200 AND 1500 TONS OF BOG IRON.

Comment (Deposit): IRON OCCURS INTERMITTENTLY ALONG THE GULCH FOR MORE THAN ONE MILE. DEPOSIT CONSISTS OF BEDDED IRON - RICH MATERIAL AND POROUS REPLACEMENT OF ORGANIC MATERIAL IN SWAMPY AREAS.

Comment (Location): ALONG THE GULCH IN SECTIONS 9 AND 10


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): U.S. GEOLOGICAL SURVEY, U.S. BUREAU OF RECLAMATION, AND SOUTH DAKOTA GEOLOGICAL SURVEY 1975, MINERAL AND WATER RESOURCES OF SOUTH DAKOTA, SOUTH DAKOTA GEOLOGICAL SURVEY BULLETIN 16


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