Freeman Ridge Phosphate Property

The Freeman Ridge Phosphate Property is a phosphorus-phosphates mine located in Caribou county, Idaho at an elevation of 7,402 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

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.

Site Name

Primary: Freeman Ridge Phosphate Property
Secondary: Diamond Creek
Secondary: Stewart Flat, Area B, 16-18
Secondary: Stewart Flat, Area C, 19-23
Secondary: Stewart Flat, Area C, 26-34
Secondary: North Freeman Ridge

Commodity

Primary: Phosphorus-Phosphates
Tertiary: Fluorine-Fluorite
Tertiary: REE
Tertiary: Uranium
Tertiary: Vanadium

Location

State: Idaho
County: Caribou
District: Crow Creek 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: Caribou National Forest

Holdings

Type: Federal Lease

Workings

Not available

Ownership

Owner Name: Food Machinery And Chemical Corp.
Info Year: 1975

Owner Name: U.S. Forest Service
Percent: 100.0
Info Year: 1975

Owner Name: Terteling Land Co.
Years: 1966 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Surface
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains
Physiographic Detail: Webster Range

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: R
Structure: Dry Valley Fault

Type: R
Structure: Dry Valley Anticline

Type: R
Structure: Snowdrift Anticline

Type: R
Structure: Georgetown Syncline
Description: Georgetown Syncline, Snowdrift Anticline, Dry Valley Anticline, Dry Valley Fault

Alterations

Not available

Rocks

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

Analytical Data

Analytical Data: 115 SAMPLES OF STRATIGRAPHIC SEQUENCE GAVE 37.1 % P2O5 MAX ( SECTION 21 ), 115 SAMPLES IN SECTION 4 GAVE 36.9 % P2O5 MAX

Materials

Unknown: Calcite
Unknown: Collophane
Unknown: Dolomite
Unknown: Feldspar
Unknown: Limonite
Unknown: Muscovite
Unknown: Quartz
Unknown: Sericite

Comments

Comment (Location): Plotted In T 9 S, R 45 E, Section 4 ; Section 33 , T 8 S, R 45 E Also Included In Lease

Comment (Development): 1636.98 Acre Lease ( 1966 )

Comment (Deposit): 201.1 Ft Thickness Phosphatic Shale Member ( Section 21 ), 182.8 Ft ( Section 4 )

Comment (Workings): 1 Trench

References

Reference (Deposit): Mansfield, G. R., 1927 , Geography, Geology, And Mineral Resources Of Part Of Southeastern Idaho: USGS Prof. Paper 152 , 453 P.

Reference (Deposit): Service, A. L., 1966 , An Evaluation Of The Western Phosphate Industry And Its Resources, Part 3 , Idaho: USBM Rept. Inv. 6801 , 201 P.

Reference (Deposit): Sheldon, R. P., And Others, 1953 , Stratigraphic Sections Of The Phosphoria Formation In Idaho, 1949 , Part 1 : USGS Circ. 304 , 30 P.

Reference (Deposit): Garrand, Leonard. 1975. Phosphate Study Of Se Idaho For U.S.

Reference (Deposit): Montgomery, K.M., Cheney, T.M. 1967. U.S.G.S. Bulletin 1217

Reference (Deposit): Richards, R.W. And Mansfield, G.R., 1914, USGS Bulletin 577

Idaho Gold

"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.