Woodruff Creek

Site Name

Primary: Woodruff Creek
Secondary: Northern Wasatch Range
Secondary: Dry Bread Hollow
Secondary: Laketown

---

Commodity

Primary: Phosphorus-Phosphates
Tertiary: Uranium

---

Location

State: Utah
County: Rich
District: Western Phosphate

---

Land Status

Land ownership: Private
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.

---

Holdings

Type: Other

---

Workings

Type: Surface

---

Ownership

Owner Name: U.S. Government
Percent: 100.0
Home Office: Dist Of Columbia
Info Year: 1980

---

Production

Not available

---

Deposit

Record Type: Deposit
Operation Category: Prospect
Deposit Type: Chemical Sediment, Marine
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Washing
Discovery Year: 1889
Years of Production:
Organization:
Significant: Y

---

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Middle Rocky Mountains

---

Mineral Deposit Model

Model Name: Phosphate, upwelling type

---

Orebody

Not available

---

Structure

Not available

---

Alterations

Not available

---

Rocks

Not available

---

Analytical Data

Not available

---

Materials

Unknown: Kaolinite
Unknown: Gypsum
Unknown: Illite
Unknown: Limonite
Unknown: Montmorillonite
Unknown: Pyrite
Unknown: Quartz
Unknown: Sphene
Unknown: Apatite
Unknown: Calcite
Unknown: Dolomite
Unknown: Feldspar
Unknown: Tourmaline
Unknown: Zircon
Unknown: Fluorite

---

Comments

Comment (Deposit): THIS MINERALS AVAILABILITY SYSTEM EVALUATION WAS DONE AS PART OF A 1980 STUDY OF UTAH AND WYOMING PHOSPHATE DEPOSITS BY THE INTERMOUNTAIN FIELD OPERATIONS CENTER, DENVER, COLORADO.

Comment (Exploration): THE INITIAL PHOSPHATE DISCOVERY IN THE NORTHERN WASATCH RANGE OCCURRED IN 1889 WITH THE LATEST DISCOVERY, AT DRY BREAD HOLLOW, OCCURRING IN 1963. EXPLORATION WORK HAS BEEN DONE SPORADICALLY SINCE 1889. NO PRODUCTION HAS OCCURRED WITHIN THE DEPOSIT AREA.

Comment (Location): PORTIONS OF THE DEPOSIT EXTEND INTO WEBER, CACHE, MORGAN, AND SUMMIT COUNTIES.

Comment (Geology): THE PHOSPHORIA FORMATION IS SUBDIVIDED INTO FIVE MEMBERS BY MCKELVEY (BIBLIOGRAPHY REF. L010), TWO OF WHICH (THE MEADE PEAK AND RETORT MEMBERS) CONTAIN SIGNIFICANT PHOSPHATE DEPOSITS. IN UTAH AND SOUTHWESTERN WYOMING, THE MEADE PEAK MEMBER, AND IN CENTRAL AND NORTHWESTERN WYOMING, THE RETORT MEMBER CONTAIN THE DEPOSITS OF POTENTIAL INTEREST. THE PARK CITY FORMATION OF UTAH AND CENTRAL WYOMING AND THE SHEDHORN SANDSTONE OF NORTHWESTERN WYOMING ARE STRATIGRAPHIC EQUIVALENTS OF AND INTERTONGUE WITH THE PHOSPHORIA FORMATION. THE PHOSPHORIA FORMATION AND EQUIVALENT FORMATIONS ARE UNDERLAIN BY EITHER THE TENSLEEP SANDSTONE, WEBER QUARTZITE, WELLS FORMATION, OR DIAMOND CREEK SANDSTONE AND ARE OVERLAIN BY EITHER THE WOODSIDE OR DINWOODY FORMATIONS.

Comment (Economic Factors): Mining and beneficiation costs for each proposed operation were obtained by applying one of 34 basic mine models and 5 basic mill models developed for evaluating Utah and Wyoming phosphate deposits. Site-specific cost adjustments were made for land acquisition, infrastructure, unusual haulage distance to mill, the presence of multiple beds requiring mining of waste, and mill feed grade and recovery. All costs are in January 1980 dollars. The schedule of costs is based on the assumption that each proposed operation will be independently developed as soon as technically possible after the official January 1979 base date for the current phosphate study. Thus, land acquisition, exploration, and infrastructure capital costs are assumed to begin in 1979. Mine and mill capital costs include a contingency allowance of 15 percent of all other capital costs except working capital. Mine and mill working capital is estimated at 60 days of operating cost. A Bureau costing manual (bibliography data set ref. I030) was used to estimate surface and underground mine exploration, development, reclamation, plant, and equipment capital costs; underground mine operating costs; capital and operating costs for the calcining-hydration mill (if used) and for the flotation sections of other mills; costs of transporting products from proposed mills to existing final processing plants; and access road construction cost. Surface mine operating costs are size-scaled, using scaling factors from Bennett (bibliography data set ref. I001), and others (U.S. office of audit and investigation) for Idaho phosphate mines in 1976 and 1977. Infrastructure capital costs assigned to each proposed mine consist of only those railroad, transmission line, and access road costs which are needed for development of each mine. Railroad cost is estimated by the Richardson rapid construction cost estimating system (bibliography data set ref. I020). Transmission line cost is estimated from typical industry costs (A.W. Watts, 1980, Water and Power Resources Services, personal communication). Access road costs are estimated by using the capital and operating cost estimating handbook (bibliography data set ref. I030). Land acquisition costs are based on typical competitive bids for leases in southeastern Idaho, adjusted for specific deposit grade and thickness. Lease rentals and royalties are based on current rates for federal leases in the western phosphate field. Capital and operating costs for all mills, excepting the calcination-hydration mill (if used) and flotation sections of other mills, are size-scaled, using scaling factors from Bennett (bibliography data set ref. I001), from costs given for a sizing and calcining mill described by de Voto, et al. (bibliography data set ref. R030), vol. 2, appendix d. Site-specific cost adjustments for mill feed grade and recovery are made, using relative cost factors calculated from average cost and recovery curves for altered and unaltered ores (bibliography data set ref. I010).

Comment (Reserve-Resource): RESERVE RECORD 1 CONSISTS OF RESOURCES IN LAKETOWN CANYON PER 100 FEET OF VERTICAL DEPTH. RESERVE RECORD 2 CONSISTS OF RESOURCES AT WOODRUFF CREEK AND LAKETOWN CANYON PER 100 FEET OF VERTICAL DEPTH. RESERVE RECORD 3 CONSISTS OF RESOURCES AT WOODRUFF CREEK AND LAKETOWN CANYON PER 100 FEET OF VERTICAL DEPTH. RESERVE RECORD 4 CONSISTS OF RESOURCES AT DRY BREAD HOLLOW. RESERVE RECORD 5 CONSISTS OF RESOURCES AT DRY BREAD HOLLOW. RESERVE RECORD 6 CONSISTS OF RESOURCES SOUTH OF DRY BREAD HOLLOW UNDER TERTIARY COVER.

Comment (Production): RECOVERIES IN THE YIELD DATA SET FOR TWO-PRODUCT MILLS ARE CALCULATED FROM THE TOTAL FEED TO THE MILL AND ARE NOT ACTUAL RECOVERIES WITHIN EACH ORE STREAM. WITHIN-ORE-STREAM RECOVERY FOR THE TWO-PRODUCT MILL PROPOSED IN THIS EVALUATION IS 88.0 PERCENT FOR MILL K1, DEV SCH 1&2. EXACT RECOVERIES USED IN CALCULATING PRODUCT OUTPUT TONNAGES FOR THE TWO-PRODUCT MILL PROPOSED IN THIS EVALUATION ARE 81.6611 PERCENT FOR PRODUCT A, DEV SCH 1&2; 6.3389 PERCENT FOR PRODUCT F, DEV SCH 1&2.

Comment (Ownership): PHOSPHATE LANDS MAY BE LEASED FROM THE U.S. GOVERNMENT. CURRENTLY, THERE ARE NO ACTIVE LEASES OR PROSPECTING PERMITS WITHIN THE AREA INCLUDED IN THIS DEPOSIT, ALTHOUGH SEVERAL PROSPECTING PERMITS AND LEASES HAVE BEEN IN EFFECT IN THE PAST. THE LAND IS PRIVATELY OWNED, BUT THE MINERAL RIGHTS ARE HELD BY THE U.S. GOVERNMENT.

Comment (Workings): ABBREVIATION FOR MINING DISTRICT: WEST. PHOSPHATE = WESTERN PHOSPHATE FIELD.

---

References

Reference (Deposit): CONF., 287 P., 3 PLATES.

Reference (Production): PARTIALLY ALTERED PHOSPHATE ROCK OF THE PHOSPHORIA

Reference (Production): FORMATION, PAPER PRESENTED AT ISMA TECHNICAL/ECON.

Reference (Ownership): CIAL REPT. (IN PRESS), TEXT WITH MAPS AND OVERLAYS.

Reference (Reserve-Resource): REPT. INV. 6934, 158 P.

Reference (Reserve-Resource): PART 4, WYOMING AND UTAH: U.S. BUREAU OF MINES

Reference (Reserve-Resource): THE WESTERN PHOSPHATE INDUSTRY AND ITS RESOURCES -

Reference (Reserve-Resource): COFFMAN, J. S., AND SERVICE, A. L., 1967, AN EVALUATION OF

Reference (Ownership): STATUS: U.S. BUR. OF LAND MANAGEMENT MAP,

Reference (Ownership): U.S. BUREAU OF LAND MANAGEMENT, 1978, STATE OF WYOMING LAND

Reference (Ownership): BUR. LAND MANAGEMENT MAP, 1:250,000 SCALE, 1 SHEET.

Reference (Ownership): OWNERSHIP AND PUBLIC MANAGEMENT, BEAR LAKE - C: U.S.

Reference (Ownership): U.S. BUREAU OF LAND MANAGEMENT, 1978, STATE OF UTAH LAND

Reference (Ownership): MONTANA, UTAH, AND WYOMING, 1979: U.S. BUREAU OF MINES SPE-

Reference (Ownership): FEDERAL LAND STATUS IN THE OVERTHRUST BELT OF IDAHO,

Reference (Ownership): SCHUMACHER, O. L., PENSE, R. A., AND DAVIS, R. B., 1979,

Reference (Geology): TAIN ASSOC. OF GEOL. 15TH ANN. FIELD CONF., P. 99-102.

Reference (Geology): PHOSPHORITES OF THE PHOSPHORIA FORMATION, IN INTERMOUN-

Reference (Geology): 3 PLATES.

Reference (Geology): GULBRANDSEN, R. A., 1967, SOME COMPOSITIONAL FEATURES OF

Reference (Geology): U.S. GEOLOGICAL SURVEY PROF. PAPER 313-A, P. 1-47,

Reference (Geology): SHEDHORN FORMATIONS IN THE WESTERN PHOSPHATE FIELD:

Reference (Production): ENG., JAN. 1978, P. 37-40.

Reference (Geology): MCKELVEY, V. E., 1959, THE PHOSPHORIA, PARK CITY, AND

Reference (Production): ADVANCES IN BENEFICIATION OF WESTERN PHOSPHATES: MIN.

Reference (Production): MO., OCT. 19-21, 1977, 17 P.

Reference (Production): RULE, A. R., KIRBY, D. E., AND DAHLIN, D. C., 1978, RECENT

Reference (Production): PRESENTED AT S.M.E. FALL MEETING AND EXHIBIT, ST. LOUIS

Reference (Production): ADVANCES IN BENEFICIATION OF WESTERN PHOSPHATES, PAPER

Reference (Production): RULE, A. R., KIRBY, D. E., AND DAHLIN, D. C., 1977, RECENT

Reference (Production): CONF.; ORLANDO, FLA., OCT. 23-27, 1979, 11 P.

Reference (Production): FLOTATION OF CARBONATE AND SILICATE MINERALS FROM

Reference (Production): RULE, A. R., DAHLIN, D. C., AND FERGUS, A. J., 1978,

Reference (Production): 1968, P. 11-21.

Reference (Geology): CIRC. 306, 40 P.

Reference (Geology): GALE, H. S., AND RICHARDS, R. W., 1910, PHOSPHATES, IN U.S.

Reference (Geology): FORMATION IN UTAH, 1949-51: U.S. GEOLOGICAL SURVEY

Reference (Geology): M. A., 1953, STRATIGRAPHIC SECTIONS OF THE PHOSPHORIA

Reference (Geology): CHENEY, T. M., SMART, R. A., WARING, R. G., AND WARNER,

Reference (Geology): ERALOG. SURVEY BULL. 59, 54 P., 3 PLATES.

Reference (Geology): CHENEY, T. M., 1957, PHOSPHATE IN UTAH: UTAH GEOL. AND MIN-

Reference (Geology): GEOLOGICAL SURVEY BULL. 430, P. 536-551.

Reference (Geology): OGY, PART I - METALS AND NONMETALS EXCEPT FUELS: U.S.

Reference (Geology): OF WYOMING AND UTAH, IN CONTRIBUTIONS TO ECONOMIC GEOL-

Reference (Geology): PHATE DEPOSITS IN SOUTHEASTERN IDAHO AND ADJACENT PARTS

Reference (Deposit): NO. 50-820, 1102 P.

Reference (Deposit): HALE, L. A., ED., 1967, ANATOMY OF THE WESTERN PHOSPHATE

Reference (Production): METALURSKI ZBORNIK, NO. 2-3, 1970, P. 275-283.

Reference (Geology): TIONS AND CHEMICAL ANALYSES OF PHOSPHATIC ROCKS OF

Reference (Geology): SCHELL, E. M., AND MOORE, K. P., 1970, STRATIGRAPHIC SEC-

Reference (Geology): GEOLOGICAL SURVEY BULL. 430, P. 457-553.

Reference (Production): PHOSPHATE ROCK - CHARACTER, PROCESSING, AND ECONOMICS:

Reference (Geology): 1:250,000-SCALE MAP, 1 SHEET.

Reference (Production): DUNCAN, W. E., AND FISK, H. G., 1957, CENTRAL WYOMING

Reference (Geology): BY 2-DEGREE TOPOGRAPHIC MAP: U.S. GEOLOGICAL SURVEY,

Reference (Geology): U.S. GEOLOGICAL SURVEY, 1954, OGDEN, UTAH; WYOMING, 1-DEGREE

Reference (Geology): FORMATION, 1953: U.S. GEOLOGICAL SURVEY CIRC. 375, 30 P.

Reference (Geology): T. M., 1956, STRATIGRAPHIC SECTIONS OF THE PHOSPHORIA

Reference (Geology): SWANSON, R. W., CARSWELL, L. D., SHELDON, R. P., AND CHENEY,

Reference (Geology): UTAH: U.S. GEOLOGICAL SURVEY CIRC. 635, 11 P.

Reference (Geology): PERMIAN AND MISSISSIPPIAN AGE IN WEBER COUNTY,

Reference (Production): PHOSPHORUS AND POTASSIUM, NO. 35, MAY/JUNE

Reference (Production): NEUBERGER, R., 1968, PHOSPHATE ROCK CALCINATION IN ISRAEL:

Reference (Production): U.S. BUREAU OF MINES REPT. INV. 8154, 17 P.

Reference (Production): CALCAREOUS PHOSPHATE ROCK BY CALCINATION AND HYDRATION:

Reference (Production): GOOD, P. C., 1976, BENEFICIATION OF UNWEATHERED INDIAN

Reference (Production): ITALY, APRIL 23-24, 1975, P. 53-54.

Reference (Production): INTERNAT. MINERALS PROCESSING CONGRESS, KAGLIARI,

Reference (Production): FICIATION OF LEAN PHOSPHATE WITH CARBONATE GANGUE, 11TH

Reference (Production): DEPOSIT WITH CALCAREOUS GANGUE, IN SEMINAR ON BENE-

Reference (Production): BENEFICIATION STUDIES ON A HIMALAYAN LEAN PHOSPHATE

Reference (Production): GOKHALE, K. V. G. K., RAO, T. C., AND BISWAS, A. K., 1975,

Reference (Production): CALCINATION, THE MATERIAL BALANCE: RUDARSKO -

Reference (Production): EBERL, E., 1970, BENEFICIATION OF CALCIUM PHOSPHATE BY

Reference (Production): UNIV. OF WYO. NAT. RES. RESEARCH INST. BULL. 6, 60 P.

Reference (Reference): FIELD: U.S. GEOLOGICAL SURVEY BULL. 1018, 89 P.

Reference (Reference): BIBLIOGRAPHY OF THE GEOLOGY OF THE WESTERN PHOSPHATE

Reference (Reference): HARRIS, R. A., DAVIDSON, D. F., AND ARNOLD, B. P., 1954,

Reference (Geology): BLACKWELDER, ELIOT, 1910, PRELIMINARY REPORT ON THE PHOS-

Reference (Deposit): FIELD: INTERMOUNTAIN ASSOC. OF GEOL. 15TH ANN. FIELD

Reference (Deposit): EASTERN IDAHO: U.S. DEPT. OF AGR. CONTRACT

Reference (Deposit): GARRAND CORPORATION, 1975 (?), PHOSPHATE RESERVES OF SOUTH-

Reference (Deposit): STRATEGIC MINER. INV. PRELIM. MAP 3-198, 1 SHEET.

Reference (Deposit): MONTANA, IDAHO, WYOMING, AND UTAH: U.S. GEOLOGICAL SURVEY

Reference (Deposit): CLABAUGH, P. S., 1946, PERMIAN PHOSPHATE DEPOSITS OF

Reference (Reserve-Resource): SERVES OF UTAH: UTAH AGR. EXPT. STA. BULL 304, 23 P.

Reference (Reserve-Resource): WILLIAMS, J. S., AND HANSON, A. M., 1942, THE PHOSPHATE RE-

Reference (Reserve-Resource): STATES AND FREE WORLD: SUBCONTRACT 78-177-S TO DEPT.

Reference (Reserve-Resource): URANIUM RECOVERY FROM PHOSPHATE RESOURCES, UNITED

Reference (Reserve-Resource): PHOSPHATE RESOURCES AND TECHNOLOGY AND ECONOMICS OF

Reference (Reserve-Resource): DE VOTO, R. H., AND STEVENS, D. N., ED., 1979, URANIFEROUS

Reference (Reserve-Resource): STA. BULL. 290, 44 P.

Reference (Reserve-Resource): WILLIAMS, J. S., 1942, PHOSPHATE IN UTAH: UTAH AGR, EXPT.

Reference (Reserve-Resource): FILE REPT. 64-138, 38 P., PLATE.

Reference (Reserve-Resource): HOLLOW, HEBER COUNTY, UTAH: U.S. GEOLOGICAL SURVEY OPEN

Reference (Reserve-Resource): DEPOSITS AND STRATIGRAPHY OF PERMIAN ROCKS IN DRY BREAD

Reference (Reserve-Resource): SCHELL, E. M., 1964, PRELIMINARY REPORT ON THE PHOSPHATE

Reference (Reserve-Resource): QUADRANGLE MAP GQ-790.

Reference (Reserve-Resource): RANGLE, WEBER COUNTY, UTAH: U.S. GEOLOGICAL SURVEY GEOL.

Reference (Reserve-Resource): MULLENS, T. E., 1969, GEOLOGIC MAP OF THE CAUSEY DAM QUAD-

Reference (Reserve-Resource): P. 195-205.

Reference (Reserve-Resource): OF UTAH: UTAH GEOL. AND MINERALOG. SURVEY BULL. 73,

Reference (Reserve-Resource): GERE, W. C., 1964, PHOSPHATE, IN MINERAL AND WATER RESOURCES

Reference (Reserve-Resource): CORP.) BY EARTH SCIENCES INC., 1396 P. PLUS PLATES.

Reference (Reserve-Resource): OF ENERGY CONTRACT 50-54-5903 (BENDIX FIELD ENG.

---

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.