Atlantic City Iron Mine

The Atlantic City Iron Mine is a iron mine located in Fremont county, Wyoming at an elevation of 8,301 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

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Site Name

Primary: Atlantic City Iron Mine
Secondary: South Pass Gold Mining Area
Secondary: Iron Mountain
Secondary: Atlantic City Mine

Commodity

Primary: Iron

Location

State: Wyoming
County: Fremont
District: Atlantic City 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.

Holdings

Type: Fee Ownership
Type: Located Claim
Type: Patented

Workings

Type: Surface

Ownership

Owner Name: Universal Equipment Co.
Company ID: 4800145
Percent: 100.0
Home Office: Fremont, Ohio
Info Year: 1992

Owner Name: U.S. Steel
Info Year: 2010

Production

Year: 1970
Description: Iron Pellets 1471000 Metric Tons Pellets/Year
Year: 1971
Description: Iron Pellets 1347000 Metric Tons Pellets/Year
Year: 1972
Description: Iron Pellets 1564000 Metric Tons Pellets/Year
Year: 1973
Description: Iron Pellets 1639000 Metric Tons Pellets/Year
Year: 1974
Description: Iron Pellets 1693000 Metric Tons Pellets/Year
Year: 1975
Description: Iron Pellets 1639000 Metric Tons Pellets/Year
Year: 1976
Description: Iron Pellets 1726000 Metric Tons Pellets/Year
Year: 1977
Description: Iron Pellets 1681000 Metric Tons Pellets/Year
Year: 1978
Description: Iron Pellets 1551000 Metric Tons Pellets/Year
Year: 1979
Description: Iron Pellets 1486000 Metric Tons Pellets/Year
Year: 1980
Description: Iron Pellets 1535000 Metric Tons Pellets/Year

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Magnetic
Year First Production: 1962
Year Last Production: 1982
Years of Production:
Organization:
Significant: Y

Physiography

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

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Unknown: Hematite
Unknown: Magnetite
Unknown: Goethite
Unknown: Chert

Comments

Comment (Reserve-Resource): ATLANTIC CITY RESERVES WERE CALCULATED USING PAST PRODUCTION STATISTICS (1977-1980) AND INFORMATION ON PROJECTED MINE LIFE PROVIDED BY COMPANY OFFICIALS. RESOURCE ESTIMATE CALCULATED FROM INFORMATION IN 1984 MINERALS YEARBOOK, VOL. 2, P. 668. THE GRADE IS ASSUMED TO BE THE SAME AS PREVIOUS EVALUATION.

Comment (Ownership): UNIVERSAL PICKED UP THE MINE AND PERMIT IN 1985. THE COMPANY AS OF 1992, THE COMPANY IS UNDER ORDER BY THE STATE OF WYOMING TO RAIZE THE MINE AND MILL PLANT FACILITIES. (CASPER STAR- TRIBUNE, 10/23/92).

Comment (Production): MINE PRODUCTION BEGAN IN AUGUST, 1962 WITH A PROJECTED MINE LIFE OF 30 YEARS. ATLANTIC CITY MINE OCCURS ON BOTH LOUIS LAKE AND MINERS DELIGHT 7.5. MINUTE QUADRANGLES. THE PLANT CAPACITY WAS 4161000 MTPY. PROPERTY REVIEWED BY RC SMITH, 3-87. AT THIS TIME, THE MINE HAS BEEN SHUTDOWN SINCE OCT. 1983 AND IS CONSIDERED TO BE PERMANENT. THE MINE EQUIPMENT WAS SOLD TO UNIVERSAL EQUIPMENT CO. WHO IN TURN AUCTIONED IT OFF.

Comment (Production): PRODUCTION IS ONGOING. [Ceased in 1982.]

Comment (Workings): TOTAL LAND HOLDING IS 3238 HECTARES.

Comment (Development): ORE PRODUCTION CAPACITY GREATER THAN 3,000,000 TONNES/YEAR. OPERATION SUSPENDED IN 1988. [copied from deleted record 10085076 = W700604, ref is to MINING MAGAZINE, JANUARY 1989, P. 44]

Comment (Ownership): Wyoming State Geological Survey website states: "U.S. Steel mine at Atlantic City (taconite)". [http://www.wsgs.uwyo.edu/Topics/WYEconomics/Metals.aspx, accessed 6/9/2010]

Comment (Orebody): Taconite is high-grade ore containing >50% Fe2O3 and with high silica content.

References

Reference (Deposit): ENGINEERING AND MINING JOURNAL. U. S. STEEL'S ATLANTIC CITY ORE MINE, FIRST TACONITE PRODUCER IN THE WEST. V. 166, NO. 3, MARCH 1965, PP. 73-92.

Reference (Deposit): HARRER, C.M. WYOMING ORE DEPOSITS. BUMINES IC 8315, 1966, 114 PP.

Reference (Deposit): KING, R.H. IRON DEPOSIT NEAR ATLANTIC CITY, WYOMING. REPORT FOR THE CHICAGO AND NORTHWESTERN RAILWAY COMPANY AND THE WYO. GEOLOGICAL SURVEY. LARAMIE, WYOMING, 1949, 10 PP.

Reference (Deposit): PRIDE, D.E. AND A.F. HAGNER. GEOCHEMISTRY AND ORIGIN OF THE PRECAMBRIAN IRON FORMATION NEAR ATLANTIC CITY, FREMONT COUNTY, WYOMING. BULL. ECON. GEOL., V. 67, 1972, PP. 329-338.

Reference (Deposit): RIDGE, J.D. ORE DEPOSITS OF THE UNITED STATES, 1933-1967, THE GRATON-SALES VOLUME. AMER. INST. OF MINING, METALLURGICAL, AND PETROLEUM ENGINEERS, INC., NEW YORK, 1ST ED., 1968, PP. 590-604.

Reference (Deposit): 1984 MINERALS YEARBOOK, VOL. 2, P. 668.

Reference (Deposit): SKILLINGS' MINING REVIEW. U. S. STEEL'S SHIPMENTS OF IRON ORE FROM WESTERN MINES. MARCH 14, 1981, P. 5.

Reference (Deposit): CAMERON ENGINEERS. REVIEW AND FORECAST - WYOMING MINERAL INDUSTRIES. A REPORT PREPARED FOR THE WYOMING NATURAL RESOURCE BOARD AND THE STATE WATER PLANNING PROGRAM. 1969, PP. 160-227.

Reference (Deposit): BAYLEY, R.W. A PRELIMINARY REPORT ON THE PRECAMBRIAN IRON DEPOSITS NEAR ATLANTIC CITY, WYOMING. U. S. GEOL. SURVEY BULL. 1142-C, 1963, 23 PP.

Reference (Deposit): BAYLEY, R.W., P.D. PROCTOR, AND K.C. CONDIE. GEOLOGY OF THE SOUTH PASS AREA, FREMONT COUNTY, WYOMING. U. S. GEOLOGICAL SURVEY PROF. PAPER 793, 1973, 39 PP.

Reference (Deposit): BROWN, D.B. AND E.F. HARVEY. WYOMING ENERGY CONSUMPTION. A REPORT PREPARED FOR THE MINERAL DEVELOPMENT DIVISION OF THE DEPARTMENT ECONOMIC PLANNING AND DEVELOPMENT, STATE OF WYOMING. BICKERT, BROWNE, CODDINGTON AND ASSOCIATES, INC., 100 SOUTH MADISON, DENVER, COLORADO 80209. JUNE 1975, PP. 41-43.

Reference (Deposit): MINING MAGAZINE, JANUARY 1989, P. 44.

Reference (Deposit): DAY, R. EXCAVATING THE WEST'S TOUGHEST TACONITE. MIN. CONG. JOUR., JUNE 1964, PP. 76-79.

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