Middle Piney Lake Occurrence

The Middle Piney Lake Occurrence is a phosphorus-phosphates mine located in Sublette county, Wyoming.

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: Middle Piney Lake Occurrence  

State:  Wyoming

County:  Sublette

Elevation:

Commodity: Phosphorus-Phosphates

Lat, Long: 42.60389, -110.56639

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 Middle Piney Lake Occurrence

Middle Piney Lake Occurrence MRDS details

Site Name

Primary: Middle Piney Lake Occurrence
Secondary: Section 99
Secondary: Lot No. 1377


Commodity

Primary: Phosphorus-Phosphates
Tertiary: Uranium


Location

State: Wyoming
County: Sublette


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: Bridger


Holdings

Not available


Workings

Not available


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: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains


Mineral Deposit Model

Not available


Orebody

Form: BLANKET


Structure

Type: R
Description: 1 1/2 Miles East Of The Darby Thrust Fault

Type: L
Description: Straight Creek Fault


Alterations

Not available


Rocks

Not available


Analytical Data

Not available


Materials

Not available


Comments

Comment (Workings): PROSPECT TRENCH

Comment (Commodity): P2O5 CONTENT RANGES FROM 0.2 TO 34.4%; URANIUM CONTENT RANGES FROM 0.004 TO 0.011

Comment (Geology): ALSO PERMIAN PARK CITY AND WELLS FORMATIONS; SECTION AS FOLLOWS: 16.5 FEET OF THE BASAL BED OF THE DINWOODY FORMATION; 23 FEET OF THE TOSICHERT MEMBER AND 22 FEET OF THE RETORT PHOSPHATIC SHALE MEMBER OF THE PHOSPHORIA FORMATION; 101.3 FEET OF THE FRANSAN TONQUE OF THE PARKCITY FORMATION; 44.6 FEET OF THE REX CHERT MEMBER, 60.9 FT. OF THE MEADE PEAK MEMBER, AND 32.5 FEET OF THE LOWER CHERT MEMBER OF THE PHOSPHORIA FORMATION; AND 72.2 FEET OF THE WELLS FORMATION; UPPER BEDS ONLY

Comment (Location): Wilson and Heran visited 10-aug-2010. Steep slope at north end of the dam exposes "soil" that we've come to recognize as mined phosphate.


References

Reference (Deposit): Sheldon, 1963, USGS PP 313-B, p. 49-273.

Reference (Deposit): LITCHFORD, R.F., JR., 1966, STRUCTURAL GEOLOGY AND STRATIGRAPHY OF A PART OF THE OVERTHRUST BELT NEAR WYOMING PEAK, LINCOLN AND SUBLETTE COUNTIES, UNPUBLISHED M.A. THESIS, U OF W


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