Mountain Fuel Lease

Past Producer in Caribou county in Idaho, United States with commodities Phosphorus-Phosphates, Fluorine-Fluorite, REE, Uranium, Vanadium

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Public Land Survey System information
Commodities
Materials information
Mineral occurrence model information
Host and associated rocks
Nearby scientific data
Geologic structures
Ore body information
Controls for ore emplacement
Economic information about the deposit and operations
Mining district
Mineral rights holdings
Land status
Ownership information
Production statistics
Reserves and resources
Workings at the site
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10241087
MRDS ID	W026175
MAS/MILS ID	0160290009
Record type	Deposit
Current site name	Mountain Fuel Lease
Alternate or previous names	Conda Pardnership, Dry Canyon Lease (1966), South Schmid Ridge, Dry Valley, Area C, 10-17, Harrington Peak, Area B, 8, Dry Canyon Phosphate Prospect

Geographic coordinates

Point of reference	Pit
Geographic coordinates:	-111.2855, 42.63932 (WGS84)
Elevation	2149
Location accuracy	500(meters)

Site location context

Political divisions (FIPS codes)

Caribou(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dry Valley(quadrangle 1:24,000 scale)

Soda Springs(quadrangle 1:100,000 scale)

Preston(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Blackfoot(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Caribou-Targhee National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country	State	County
United States	Idaho	Caribou

Public Land Survey System information

Meridian	Township	Range	Section	Fraction	State
Boise	009 S	044 E	09,14,15,18,19,16,20		Idaho

Comments on the location information

Dry Canyon Phosphate Lease In Sections 9 , 15 ; Deposit Plotted In Section 9

Commodities

Commodity	Importance
Phosphorus-Phosphates	Primary
Fluorine-Fluorite Critical	Tertiary
REE Critical	Tertiary
Uranium	Tertiary
Vanadium Critical	Tertiary

Materials information

Materials	Type of material
Calcite	Unknown
Chalcedony	Unknown
Collophane	Unknown
Dolomite	Unknown
Kaolinite	Unknown
Limonite	Unknown
Montmorillonite	Unknown
Orthoclase	Unknown
Pyrite	Unknown
Quartz	Unknown
Sericite	Unknown

Analytical data

Result	182 SAMPLES ( SECTION 14 ) GAVE 35.9 % P2O5 MA
Result	193 SAMPLES ( SECTION 19 ) GAVE 35.3 % P2O5 MAX
Result	61 SAMPLES OF STRATIGRAPHIC SECTION GAVE 34.2 % P2O5 MAX ( SECTION 20 )

Mineral occurrence model information

Model code	243
USGS model code	34c
Deposit model name	Phosphate, upwelling type

Host and associated rocks

Host or associated Host

Rock type

Rock unit name Phosphoria Formation

Host or associated	Host
Rock type
Rock unit name	Phosphoria Formation

Host or associated

Host

Rock type

Sedimentary Rock > Clastic Sedimentary Rock > Shale

Rock type qualifier

Phosphatic Shale

Rock unit name

Phosphoria Formation

Stratigraphic age (youngest)	Late Permian

Host or associated

Host

Rock type

Sedimentary Rock > Chemical Sediment > Chert

Rock unit name

Phosphoria Formation

Stratigraphic age (youngest)	Late Permian

Host or associated Host

Rock type

Rock unit name Wells Formation
Host or associated Host

Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Rock unit name Wells Formation
Host or associated Host

Rock type Sedimentary Rock > Carbonate > Limestone

Rock unit name Wells Formation
Host or associated Host

Rock type

Rock unit name Thaynes Formation
Host or associated Host

Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Rock unit name Thaynes Formation
Host or associated Host

Rock type Sedimentary Rock > Carbonate > Limestone

Rock unit name Thaynes Formation
Host or associated Host

Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Rock unit name Thaynes Formation
Host or associated Host

Rock type

Rock unit name Dinwoody Formation
Host or associated Host

Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale

Rock unit name Dinwoody Formation
Host or associated Host

Rock type Sedimentary Rock > Carbonate > Limestone

Rock unit name Dinwoody Formation

Host or associated	Host
Rock type
Rock unit name	Wells Formation

Host or associated	Host
Rock type	Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
Rock unit name	Wells Formation

Host or associated	Host
Rock type	Sedimentary Rock > Carbonate > Limestone
Rock unit name	Wells Formation

Host or associated	Host
Rock type
Rock unit name	Thaynes Formation

Host or associated	Host
Rock type	Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
Rock unit name	Thaynes Formation

Host or associated	Host
Rock type	Sedimentary Rock > Carbonate > Limestone
Rock unit name	Thaynes Formation

Host or associated	Host
Rock type	Sedimentary Rock > Clastic Sedimentary Rock > Shale
Rock unit name	Thaynes Formation

Host or associated	Host
Rock type
Rock unit name	Dinwoody Formation

Host or associated	Host
Rock type	Sedimentary Rock > Clastic Sedimentary Rock > Shale
Rock unit name	Dinwoody Formation

Host or associated	Host
Rock type	Sedimentary Rock > Carbonate > Limestone
Rock unit name	Dinwoody Formation

Nearby scientific data

Pit (1)	-111.2855, 42.63932	ListMap

Economic information

Geologic structures

Type of structure	Regional
Structure name	Schmid Syncline
Type of structure	Regional
Structure name	Slug Creek Syncline
Type of structure	Regional
Structure name	Dairy Syncline
Type of structure	Regional
Structure name	Dry Valley Anticline

Ore body information

General form

TABULAR, SEDIMENTARY

Strike

N55W

Dip

25E

Thickness

18M

Length

1400M

Width

170M

Area

68HA

Depth to top

40M

Field	Value
MAS Matrix #	1
MAS Column #	1
Type of Orebody #1	SEDIMENTARY
Shape of Orebody #1	TABULAR
Primary mode of Origin	SEDIMENTATION
Secondary mode of Origin	RESIDUAL CONCENT
Primary Ore Control	BEDDING
Secondary Ore Control	LITHOLOGY
Degree of Wallrock Alter.	NONE
Strike And Dip	N55W:25E
Minimum Depth to Top	0
Avg. Thick. Unconsol. Mat.	2
Min. Thick. Unconsol. Mat.	0
Date of Last Modification	830316

General form

TABULAR, SEDIMENTARY

Thickness

14M

Length

3100M

Area

68HA

Field	Value
MAS Matrix #	3
MAS Column #	2
Type of Orebody #1	SEDIMENTARY
Shape of Orebody #1	TABULAR
Primary mode of Origin	SEDIMENTATION
Secondary mode of Origin	RESIDUAL CONCENT
Primary Ore Control	BEDDING
Secondary Ore Control	LITHOLOGY
Degree of Wallrock Alter.	NONE
Minimum Depth to Top	0
Avg. Thick. Unconsol. Mat.	2
Min. Thick. Unconsol. Mat.	0
Date of Last Modification	830316

General form IRREGULAR

Strike N 64 DEG W

Dip 85 DEG NE

Thickness 2.44M

Depth to bottom 548.64M

General form	IRREGULAR
Strike	N 64 DEG W
Dip	85 DEG NE
Thickness	2.44M
Depth to bottom	548.64M

Controls for ore emplacement

Bedding
Structure

Economic information about the deposit and operations

Operation type	Surface
Development status	Past Producer
Commodity type	Both
Deposit size	Small
Significant	Yes
Mining method	Open Pit
Milling method	Thermal Decomposition

Mining district

District name	Blackfoot River District
District name	Soda Springs Area

Mineral rights holdings

Type of mineral rights	Federal Lease

Land status

Ownership category	National Forest
Area name	Caribou National Forest

Ownership information

Type Owner

Owner Nu-West Industries, Inc.

Interest 100

Home office Colorado

Year 1994

First year 1992
Type Operator

Owner Washington Const. Co.

Home office Idaho

Year 1984

First year 1984
Type Operator

Owner Monsanto Co.

First year 1966

Type	Owner
Owner	Nu-West Industries, Inc.
Interest	100
Home office	Colorado
Year	1994
First year	1992

Type	Operator
Owner	Washington Const. Co.
Home office	Idaho
Year	1984
First year	1984

Type	Operator
Owner	Monsanto Co.
First year	1966

Production statistics

Year

1986

Description

Phosphate Rock 25.4% P2o5 25000 Mt Ore

Importance	Item	Commodity	Group	Amount recovered	Grade	Recovery percentage
Major	P2O5	Phosphorus-Phosphates	Phosphorus	25000mt	25wt-pct

Comments on the production information

Mine Production Will Be 8705 T/D;6078 T/D Of Screened Low + Med. Grade And 2295 T/D Unscreened High Grade Ore. Eq-Dev 1 And La-Dev 1 Relate To The North Pt. Eq-Dev 2 And La-Dev 2 Relate To The South Pit.

Reserves and resources

Type

In-situ

Estimate year

1978

Measured

9000000mt ore

Demonstrated

9000000mt ore

Total resources

9000000mt ore

Commodity	Subtype	Grade	units	Group	Importance	Year
REE	REE	0.1	wt-pct	REE	Trace	1978
Phosphorus-Phosphates	P2O5	25.8	wt-pct	Phosphorus	Major	1978
Vanadium	V2O5	0.07	wt-pct	Vanadium	Trace	1978
Uranium	U3O8	0.01	wt-pct	Uranium	Trace	1978
Fluorine-Fluorite	F	2.58	wt-pct	Fluorine	Trace	1978

Type

In-situ

Estimate year

1975

Indicated

8400000mt ore

Demonstrated

8400000mt ore

Total resources

8400000mt ore

Commodity	Subtype	Grade	units	Group	Importance	Year
REE	REE	0.1	wt-pct	REE	Trace	1975
Phosphorus-Phosphates	P2O5	27.6	wt-pct	Phosphorus	Major	1975
Vanadium	V2O5	0.07	wt-pct	Vanadium	Trace	1975
Uranium	U3O8	0.01	wt-pct	Uranium	Trace	1975
Fluorine-Fluorite	F	2.7599	wt-pct	Fluorine	Trace	1975

Type

In-situ

Estimate year

1975

Indicated

12000000mt ore

Demonstrated

12000000mt ore

Total resources

12000000mt ore

Commodity	Subtype	Grade	units	Group	Importance	Year
REE	REE	0.1	wt-pct	REE	Trace	1975
Phosphorus-Phosphates	P2O5	19.6	wt-pct	Phosphorus	Major	1975
Vanadium	V2O5	0.07	wt-pct	Vanadium	Trace	1975
Uranium	U3O8	0.01	wt-pct	Uranium	Trace	1975
Fluorine-Fluorite	F	1.96	wt-pct	Fluorine	Trace	1975

Comments on the reserve resource information

Conda Partnership Data,1984 Resources To 250 M Down Dip. Resources From Lowe, Et.Al.(1980) And Upgraded From Identified To Demonstrated. Resources From Lowe, Et.Al.(1980), Lying Between Outcrop And A Downward Vertical Projection Of Lease Boundaries.

Workings at the site

Type of workings

Surface

Area

27.5HA

Field	Value
MAS Development Schedule #	1
Mining Record #	1
Status of Mining Method	ESTIMATE
Mining Method	OPEN PIT
Swell Factor	.75
Percent Waste Rock	83
Avg. Overburden Thickness	0
Primary Material Cover	M-HARD ROCKS
Secondary Material Cover	HARD ROCKS
Hardness of Ore	M-HARD ROCKS
Avg. Bench Height (meters)	14
Max. Pit Slope (degrees)	25
Capacity	8705
Capacity Units	MT ORE/DAY
Preprod. Stripping Vol.	0
Unit Production Cost	5.36
Units of Production	$/MT ORE
Operating Days per Year	156
Operating Shifts per Day	2
Year of Information	1984

Type of workings

Surface

Field	Value
MAS Development Schedule #	2
Mining Record #	1
Status of Mining Method	PROPOSED
Mining Method	OPEN PIT
Swell Factor	.75
Percent Waste Rock	83
Primary Material Cover	M-HARD ROCKS
Secondary Material Cover	HARD ROCKS
Hardness of Ore	M-HARD ROCKS
Avg. Bench Height (meters)	14
Max. Pit Slope (degrees)	25
Capacity	8705
Capacity Units	MT ORE/DAY
Unit Production Cost	7.37
Units of Production	$/MT ORE
Operating Days per Year	156
Operating Shifts per Day	2
Year of Information	1984

Comments on the workings information

Beker Proposes 25 Deep Holes, 40 Shallow Holes; Proposed Pit To Be 4700 Ft Long, 200 - 1000 Ft Wide , 100 - 325 Ft Deep

Comments on development

560 Acre Lease ( 1975 ) ; Econ.Com: Stripping Ratio 1.5 : 1 (Expressed As Cy Waste : Tons Ore)

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
U.S. Bureau of Mines	Minerals Availability System	MAS	0160290009
USGS	Mineral Resources Data System	MRDS	W026175	MAS references MRDS
Idaho Geological Survey	Idaho Mines and Prospects	IMP	PR__89	http://www.idahogeology.org/
USGS	Mineral Resources Data System	MRDS	W026174	data consolidated into this record
U.S. Bureau of Mines	Minerals Availability System	MAS	0160290128	data consolidated into this record

Bibliographic references

Deposit

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

Cressman, E. R., And Gulbrandsen, R. A., 1955, Geology Of The Dry Valley Quadrangle, Idaho: U.S. Geological Survey Bulletin 1015-I, P. 257-270.
Deposit

McKelvey, V. E., And Others, 1953 , Stratigraphic Sections Of The Phosphoria Formation In Idaho, 1947 - 1948 , Part 1 : USGS Circ. 208 , 49 P.
Deposit

1953 Compile V. E. Mc Kelvey And Others, Circ. 301
Deposit

V.E. Mitchell, Et. Al; Mines And Prospects Map Series, 1981, Preston Quad, Location No. 126
Geology

Mc Kelvey, V. E., Armstrong, F. C., Gulbrandsen, R. A., And Campbell, R. M., 1953, Stratigraphic Sections Of The Phosphoria Formation In Idaho, 1947-48, Pt. 2, U.S. Geological Survey, Circular 301, P. 38-43.
Deposit

1967 Direxpl Mountain Fuel Supply Co., USGS Draft Environmental Impact Statement, V. 2 , Pt. 5.3
Geology

Campbell, 1953, Stratigraphic Sections Of Phosphoria Formation In Idaho, 1947-48, Part Ii: U.S. Geological Survey Trace Elements Investigations Report 187, P. 46-51.
Geology

Emigh, G. D., 1958, Petrography, Mineralogy And Origin Of Phosphate Pellets In The Phosphoria Formation: Idaho Bureau Of Mines And Geology, Pamphlet No. 114, 60 P.
Geology

Martin, G. W., 1958, Mineralogy Of Phosphate Oolites: Economic Geology, V. 53, No. 8, December, P. 1046-1048.
Reserve-Resource

Garrand, L. J., 1975, Phosphate Study Southeastern Idaho, For U.S. Department Of Agriculture, Caribou National Forest, U.S. Department Of Agriculture Contract No. 50-820: Garrand Corp.
Reserve-Resource

U.S. Geological Survey, Bureau Of Land Management, And Forest Service, 1978, Final Environmental Impact Statement/ Development Of Phosphate Resources In Southeastern Idaho, Four Volumes.
Deposit

Carter, Russell A., 1978, An Integrated Industry - Phosphate Mining And Milling In Idaho: Mining Engineering, V. 30, No. 1, P. 29-36.
Deposit

Day, R. L., 1973, Trends In The Phosphate Industry Of Idaho And The Western Phosphate Field: Idaho Bureau Of Mines And Geology, Pamphlet 155, 63 P.
Deposit

Li, Ta M., 1978, Southeastern Idaho Phosphate Mining: How An Environmental Impact Statement Distorts Growth Plans: Mining Engineering, V. 30, No. 1, P. 25-28.
Deposit

Mc Divitt, J. F., 1956, Economic Evaluation Of Phosphate And Other Minerals In Southern Idaho: Idaho Bureau Of Mines And Geology, Pamphlet No. 111, 48 P.
Deposit

Mc Kelvey, V. E., F. C. Armstrong, R. A. Gulbrandsen, And R. M. Campbell, 1953, Stratigraphic Sections Of Phosphoria Formation In Idaho, 1947-48, Part Ii: U. S. Geological Survey, Trace Elements Investigations Report 187, P. 34-39
Deposit

R. M. Campbell, 1953, Stratigraphic Sections Of The Phosphoria Formation In Idaho, 1947-48, Pt. 2: U. S. Geological Survey, Circular 301, P. 38-43.
Deposit

Powell, J. D., 1974, Evaluation Of Phosphate Resources In Southeastern Idaho: Idaho Bureau Of Mines And Geology, Information Circular No. 25, 33 P.
Deposit

Rule, A. R., D. E. Kirby, And D. C. Dahlin, 1978, Recent Advances In Beneficiation Of Western Phosphates: Mining Engineering, V. 30, No. 1, P. 37-40.
Deposit

Service, A. L., 1966, An Evaluation Of The Western Phosphate Industry And Its Resources (In Five Parts), 3. Idaho: U.S. Bureau Of Mines, Report Of Investigations 6801, 201 P.
Deposit

Service, A. L. And Popoff, C. C., 1964, An Evaluation Of The Western Phosphate Industry And Its Resources (In Five Parts), 1. Introductory Review: U.S. Bureau Of Mines, Report Of Investigations 6485, 86 P.
Deposit

Service, A. L., And N. S. Petersen, 1967, An Evaluation Of The Western Phosphate Industry And Its Resources (In Five Parts) Trends And Outlook: U.S. Bureau Of Mines, Report Of Investigations 6935, 131 P.
Deposit

Thompson, M. E., 1953, Distribution Of Uranium In Rich Phosphate Beds Of The Phosphoria Formation: U.S. Geological Survey Bulletin 988-D, P. 45-65
Deposit

Thompson, M. E., 1954, Further Studies Of The Distribution Of Uranium In Rich Phosphate Beds Of The Phosphoria Formation: U.S. Geological Survey Bulletin 1009-D, P. 107-122
Deposit

Gosling, B. B., Western Phosphate Field-Southeastern Idaho Active Mines, U.S. Dep. Interior, Bumines Mas File Report 1980, 150 Pp.
Deposit

Hagins, F. Personal Communication-General Phosphate Resource And Royalty Information, U.S. Bureau Of Land Management, 1984.
Deposit

Lowe, N.T., Benjamin, D.A. Camm, T.W., Gosling, B.B., And Gale, G.D., Western Phosphate Field-Southern Idaho Proposed Mines, U.S. Dep. Interior, Bumines Mas File Report, 1980, 238 Pp.
Deposit

Mckelvey, V.E., The Phosphoria Park City, And Shedhorn Formations In The Western Phosphate Field, U.S. Geol. Surv. Prof. Paper 313-A, 1959, 47 Pp.
Deposit

Steckley, R.C. And Lemmons, J.F., A Method For Evaluating Cost Estimates For The Mineral Availability System, U.S. Bumines Mas File Report, 1976, 41 Pp.
Deposit

U.S. Bureau Of Land Management. Environmental Assessment Plan Of The Champ Mine Lease No. I-04979, Report Number 08/82-01 P, 35 Pp.
Deposit

Smedley, D., Personal Communication-Representative For Conda Partnership (General Mine Information) Conda Partnership, 1984.

General comments

Subject category	Comment text
Deposit	Mountain Fuel Lease Is Federal Lease I-012989. This Lease Equals 227 Hectares. Property Will Be Mined Out 9-93. North Mtn Fuel Extension May Be Extended Into Monsanto.
Deposit	187.23 Ft Thickness Of Phosphatic Shale Member ( Section 19 )

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-JUN-76	Siefken, Robert R. (Miller, Pat)	U.S. Geological Survey
Reporter	15-MAY-92	Western Field Operations Center (WFOC)	U.S. Bureau of Mines
Reporter	06-MAR-95	Spear, James M.	U.S. Bureau of Mines
Updater	15-DEC-10	Causey, J. Douglas	U.S. Geological Survey	Added Model

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Mountain Fuel Lease

Geologic information

Identification information

Geographic coordinates

Site location context

Geographic areas

Public Land Survey System information

Comments on the location information

Commodities

Materials information

Analytical data

Mineral occurrence model information

Host and associated rocks

Nearby scientific data

Economic information

Geologic structures

Ore body information

Controls for ore emplacement

Economic information about the deposit and operations

Mining district

Mineral rights holdings

Land status

Ownership information

Production statistics

Comments on the production information

Reserves and resources

Comments on the reserve resource information

Workings at the site

Comments on the workings information

Comments on development

Reference information

Links to other databases

Bibliographic references

Deposit

Geology

Deposit

Deposit

Deposit

Geology

Deposit

Geology

Geology

Geology

Reserve-Resource

Reserve-Resource

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

General comments

Reporter information

Beyond USGS

Maps centered on this site