Unknown (in Dry Creek, East of Osmond)

The Unknown (in Dry Creek, East of Osmond) is a phosphorus-phosphates mine located in Lincoln county, Wyoming at an elevation of 7,001 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

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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: Unknown (in Dry Creek, East of Osmond)
Secondary: Dry Creek Prospect
Secondary: Unidentified Occurrence
Secondary: Unknown
Secondary: Dry Creek Phosphate Mine

Commodity

Primary: Phosphorus-Phosphates
Tertiary: Vanadium
Tertiary: Selenium

Location

State: Wyoming
County: Lincoln

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 National Forest

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: TABULAR/BLANKET

Structure

Not available

Alterations

Not available

Rocks

Name: Siltstone
Role: Host
Age Type: Host Rock
Age Young: Late Permian

Name: Siltstone
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian

Analytical Data

Analytical Data: 72.7% P. P. L.: GEOCHEMICAL ANOMALIES RANGED FROM 188 PPM SE AND 0.12% V205 TO 680 PPM SE AND 2.12% V205

Materials

Not available

Comments

Comment (Location): ALONG DRY CREEK ROAD, UPPER SNAKE RIVER, SALT RIVER RANGE. EAST OF OSMOND. Deleted MAS record 0560230153 notes that this may also be in Sec. 2, however, the occurrence in Sec. 2 has it's own entry.

Comment (Geology): PHOSPhATIC SHALE MEMBER. Phosphate rock contains 72.7% B.P.I. (Bull. 50, p. 148)

Comment (Workings): Martin (1994, p. 30) notes that "A completely collapsed mine portal and an extensive phosphate dump in the bed of Dry Creek are the only signs of past mining at the site. Other workings reported in the vicinity are so collapsed and eroded as to be virtually indistinguishable from the surronding countryside.

References

Reference (Deposit): Martin, Clay M., 1994, Abandoned mine lands inventory of Bridger-Teton National Forest, Wyoming: unpublished USBM report prepared for the US Forest Service (3-ring binder, 34 p., and 28 2-page site reports, most with photos).

Reference (Deposit): 1946 GEOCHEM GEOLOGICAL SURVEY OF WYOMING SE AND V205 ANOMALIES

Reference (Deposit): AMER JOUR BOT, VOL 30, P. 698-707.

Reference (Deposit): GSW BULL 50, P. 148.

Reference (Deposit): GSW BULL 36 (Beath, O.A., Hagner, A.F., and Gilbert, C.S., 1946, Some rocks and soils of high selenium content: Wyoming Geological Survey Bulletin 36, p. 1-23.)

Reference (Deposit): Mansfield, 1916, USGS BULL 620-O, p. 331-349, pl. XII.

Reference (Deposit): AMER JOUR BOT, VOL 26, P. 257-269.

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