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
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.
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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