J H Carpenter Prospect

The J H Carpenter Prospect is a manganese mine located in Fremont county, Wyoming at an elevation of 7,585 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: J H Carpenter Prospect  

State:  Wyoming

County:  Fremont

Elevation: 7,585 Feet (2,312 Meters)

Commodity: Manganese

Lat, Long: 42.339, -108.98200

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 J H Carpenter Prospect

J H Carpenter Prospect MRDS details

Site Name

Primary: J H Carpenter Prospect


Primary: Manganese


State: Wyoming
County: Fremont

Land Status

Land ownership: Unknown
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.


Type: Unknown


Not available


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Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Mining Method: Unknown
Years of Production:
Significant: N


General Physiographic Area: Rocky Mountain System
Physiographic Province: Wyoming Basin

Mineral Deposit Model

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Analytical Data

Not available


Ore: Pyrolusite
Gangue: Quartz


Comment (Location): 2 mi. west of Pacific Springs (which are in T27N, R102W, sec. 1, S2 of SW4). Therefore, Propect should be in T27N, R102W, Sec. 3, SW4. ABWilson moved coordinates to this quarter section.

Comment (Geology): "PYROLUSITE IN an EOCENE GRIT BED 12 FT THICK ASSAYS 19%-35% manganese." (Bull. 50, p. 130)

Comment (Geology): "The sediments dip gently to the south. Much quartz is present." (Bull. 50, p. 130).


Reference (Deposit): Osterwald and others, 1966, MIneral Resources of Wyoming: WYOming GEOLogical SURVey BULLetin 50, p. 130.
Pages: p. 130.

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