Primary Commodity1 TRIFID Facility Location State Majority owner 

Copper 85631BHPCP28255 San Manuel Mill Pinal County, AZ AZ BHP Billiton 

Copper 85237SRCNCHWY17 Ray Pinal County, AZ AZ Asarco LLC Copper None Resolution Copper Superior, AZ AZ BHP Billiton Copper 85539BHPCPHWY60 Pinto Valley Gila County, AZ AZ BHP Billiton Copper 86321CYPRS1MAIN Bagdad Yavapai County, AZ AZ Freeport-McMoRan Copper & Copper 85540PHLPS4521U Morenci Greenlee County, AZ AZ Freeport-McMoRan Copper & Copper 85548FRPRT85NFR Safford Mine Safford, AZ AZ Freeport-McMoRan Copper & Copper 85532NSPRTPOBOX Miami Gila County, AZ AZ Freeport-McMoRan Copper & Copper None Iron King Yavapai County, AZ AZ Freeport-McMoRan Copper & Copper 85629SRCNC4201W Mission Complex Pima County, AZ AZ Asarco LLC Copper None known Chilito/Black Eagle Gila County, AZ AZ Asarco LLC Copper None Alta Alta, AZ AZ Asarco LLC Copper None Helvetia Rosemont Pima County, AZ AZ Asarco LLC Copper None Sacaton Unit Pinal County, AZ AZ Asarco LLC Copper None Salero Ranch Salero Ranch, AZ AZ Asarco LLC 

pp ,

Copper None Trench Unit Trench Unit, AZ AZ Asarco LLC Copper None Lone Star Mine Graham County, AZ AZ Freeport-McMoRan Copper & 

Copper None United Verde Property United Verde Property, AZ AZ Freeport-McMoRan Copper & 

Copper None Maid of Sunshine Cochise County, AZ AZ Freeport-McMoRan Copper & 

Copper None Copper Basin Queen Creek, AZ AZ Freeport-McMoRan Copper & 

Copper None Clarkdale Tailing Area Clarkdale, AZ AZ Freeport-McMoRan Copper & 

Copper None Phelps Dodge Ajo Incorporated Ajo, AZ AZ Freeport-McMoRan Copper & 

Copper None Johnson Camp Mine Yavapai County, AZ AZ NORD COPPER CORPORA

Copper None Copper Cities Gila County, AZ AZ BHP Billiton 

Copper 85539BHPCPHWY6A BHP Miami Unit Miami, AZ AZ BHP Billiton 

Copper 85653SLVRB25000 Silver Bell Marana, AZ AZ Asarco LLC Copper 85614CYPRS6200W Sierrita Pima County, AZ AZ Freeport-McMoRan Copper & Copper 86401QTRLM16MIL Mineral Park Mohave County, AZ AZ Mercator Minerals Ltd. 

Copper None CA Engels Mining Co Engels & S Greenville, CA CA California Engels Mining Co 

Copper None Savage Mining and Oil Company InOuray County, CO CO Unknown 

Copper None Hecla Mining Co Stanley, ID ID Unknown Copper 62982MRCNMFERRE American Minerals Inc. Rosiclare, IL IL Unknown Copper None Copper Range Co White Pine, MI MI Unknown Copper None National Steel-Dober Mine CPX Stambaugh Twp, MI MI Unknown Copper 59701MNTNR600SH Continental Pit Silver Bow County, MT MT Montana Resources Copper 59061SMCNY5MILE Stillwater Mining py Com any Nye, MT MT Unknown 

Copper None Rock Creek Mine Noxon, MT MT Revett Minerals Inc. Copper None Montanore Mine Project Libby, MT MT Unknown Copper 88043CHNMN210CO Chino Grant County, NM NM Freeport-McMoRan Copper & 

Copper 88065PHLPSHWY90 Tyrone Grant County, NM NM Freeport-McMoRan Copper & Copper None Deming Mill Luna County, NM NM Asarco LLC 

Copper None Magdalena Mill Socorro County, NM NM Asarco LLC 

Copper None Cookes Peak Luna County, NM NM Asarco LLC 

Copper 89820CHBYM1MCCO Mccoy/Cove Mine Battle Mountain, NV NV Newmont Mining Corporation Copper 89319BHPCP7MILE Robinson White Pine County, NV NV Quadra Mining Ltd. Copper 89415SMRLD28LUC Esmeralda Mine Hawthorne, NV NV Metallic Ventures Inc 

Page 1 of 8
Primary Commodity1 TRIFID Facility Location State Majority owner 

Copper None Mossy Creek Mining, Llc Gordonsville, TN TN Unknown Copper 84006KNNCT12300 Bingham Canyon Salt Lake County, UT UT Kennecott Minerals Company Copper 84006KNNCT8362W Kennecott Copper Co Salt Lake City, UT UT Unknown Copper None OK Copper Mine Beaver County, UT UT Nvada Star Resourse Corp Copper 84530LSBNV92SCU Lisbon Valley San Juan County, UT UT Constellation Copper Corp. Copper None Pathfinder Mines Corporation Carbon County, WY WY Unknown Ferroalloy (except vanadium) None Christmas Facility Christmas, AZ AZ Freeport-McMoRan Copper & 

Ferroalloy (except vanadium) 80438CLMXM9MILE Climax Molybdenum Co. (HendersoClear Creek County, CO CO Freeport-McMoRan Copper & 

Ferroalloy (except vanadium) 83227THMPSSQUAW Thompson Creek Custer County, ID ID Thompson Creek Metals Co. Ferroalloy (except vanadium) None Northshore Mining Co;Cliffs Mn Babbitt, MN MN Cleveland-Cliffs Inc 

Ferroalloy (except vanadium) None Mossy Creek Mining, Llc New Market, TN TN Unknown Ferroalloy (except vanadium) 79922MRCNM3666D American Minerals Inc El Paso, TX TX Unknown Gold None AJT Mining Properties, Inc. Juneau, AK AK Unknown Gold None Kensington Mine Juneau, AK AK Coeur d'Alene Corporation Gold 99707FRTKN1FORA Fort Knox Fairbanks County, AK AK Kinross Gold Corporation 

Gold 99712TRNRT1TWIN True North Mine Fairbanks, AK AK Fairbanks Gold Mining, Inc. Gold None Donlin Creek Prospect Seward Meridian, AK AK Donlin Creek LLC Gold None Lucky Shot Bulk Sampling ExploratWillow Mining District, AK AK Full Metal Minerals, USA, Inc

Gold 99627NXNFR32MIL Nixon Fork Mine McGrath, AK AK Mystery Creek Resources IncGold 99752RDDGP13MIL Delong Mountain Transportation FaKotzebue, AK AK Unknown 

Gold 99737PGMNX38MIL Pogo Northwest Arctic County, AK AK Teck Cominco Inc. Gold None Sun Cloud Mine Sun Cloud Mine, AZ AZ Robert Whalen Gately 

Gold None Horton Claims Group Horton Claims Group, AZ AZ Freeport-McMoRan Copper & 

Gold 95457MCLGH26775 Homestake Mining Co Mclaughlin Lower Lake, CA CA Homestake Mining Company Gold 93562CRBRGWINGA Cr Briggs Corp Trona, CA CA CR Briggs Corp Gold 93554GLMSR27850 Glamis Rand Mine Randsburg, CA CA Unknown Gold 92227NWMNT6502E Western Mesquite Mines Inc Brawley, CA CA Western Mesquite Mines Inc Gold None Briggs Mine Project Panamint, CA CA CR Briggs Corp 

Gold None Cal Sierra Development Inc Marysville, CA CA Cal Sierra Development Inc. 

Gold None Cunningham Hill Recl. Project Santa Fe County, NM NM Lac Minerals Inc Gold None Dickey Exploration Co Oriental Alleghany, CA CA Dickey Exploration Co 

Gold None Empire Mine SHP Grass Valley, CA CA CA Dept of Parks & Recreati

Gold None Liberty Hill Mine Dutch Flat, CA CA Liberty Hill Mine Inc 

Gold None Mohawk Mine Alleghany, CA CA Jan Sticha 

Gold None New Era Mine Oroville, CA CA North Continent Land & Timb

Gold None North Fork Mine Alleg y han , CA CA North Fork Mining p Cor 

Gold None Oro De Amador Properties Jackson, CA CA Jackson City Gold None Sutter Gold Mining Co Sutter Creek, CA CA Sutter Gold Mining Company 

Gold None Telegraph & Dutch Mines Downieville, CA CA Lazarus Mining LLC 

Gold None Tuolumne Cnty Jamestown Mine Jamestown, CA CA Tuolumne Cnty PWD 

Gold 92309VCRYG11557 Viceroy Gold Corp Castle Mount Ivanpah, CA CA Viceroy Gold Corp Gold None Winkeye Consolidated Mines La Porte, CA CA OGM Energy Resources 

Gold None Homestake Mining Company Mineral County, CO CO Unknown Gold 80860CRPPL2755S Cresson Teller County, CO CO Cripple Creek & Victor Gold MGold None Gold King Mines Corporation San Juan County, CO CO Gold King Mines Corporation Gold None Calais Resources Colorado, Inc Boulder, CO CO Unknown 

Page 2 of 8
Primary Commodity1 TRIFID Facility Location State Majority owner 

Gold None Walker Ruby Trust Mining Co. Ouray County, CO CO Unknown Gold None London Mine Llc Park County, CO CO Unknown Gold None Platoro Mining Co&Union Gold Conejos County, CO CO Unknown Gold None Prarie Center Metropolitan District Fairplay, CO CO Unknown Copper None Dos Pobres Mine Safford, AZ AZ Freeport-McMoRan Copper & 

Gold None Cripple Creek and Victor Gold Mini Teller County, CO CO Cripple Creek & Victor Gold MGold None The Turquoise Connection Cripple Creek, CO CO Unknown Gold None Boulder Cnty Park and Open Spac Nederland, CO CO Unknown Gold None Golden Wonder Hinsdale County, CO CO LKA International Inc. Gold None Meridian Beartrack Co Salmon, ID ID Unknown Gold None Delamar and Stone Cabin Mines Delamar, ID ID Kinross Gold Corporation Gold None Tvx Mineral Hill Mine Jardine, MT MT Unknown Gold None Yukon Mining Inc. Unknown MT Unknown Gold None Teras Resources Inc. Unknown MT Unknown Gold 59759GLDNS453MO Golden Sunlight Jefferson County, MT MT Barrick Gold Corporation Inc 

Gold None CR Kendall Corporation Hilger, MT MT Canyon Resources Gold None CR Montana Corporation/Seven-upLincoln, MT MT Canyon Resources 

Gold None Newmont North American Explorat Lincoln, MT MT Unknown Gold None M and W Milling and Refining Virginia City, MT MT Unknown Gold None Coronado Resources USA LLC Silver Star, MT MT Unknown Gold None Lodestar Mining & Exploration Big Timber, MT MT Unknown Gold None Bootstrap/Capstone/Tara Elko County, NV NV Newmont Mining Corporation 

Gold 89003BRRCKHWY37 Bullfrog Mine Beatty, NV NV Barrick Gold Corporation Inc 

Gold 89821CRTZGSTARA Cortez Lander County, NV NV Barrick Gold Corporation Inc Gold 89003GLMSD5MILE Daisy Gold Mining Company Beatty, NV NV Unknown 

Gold 89045SMKYV1SMOK Smoky Valley Common Operation Nye County, NV NV Kinross Gold Corporation Gold 89414NWMNT35MIL Twin Creeks Golconda, NV NV Unknown Gold 89438NWMNTSTONE Lone Tree Humboldt County, NV NV Newmont Mining Corporation Gold None Eastern Nevada Operations Elko County, NV NV Newmont Mining Corporation Gold 89803BRRCK27MIL Goldstrike Mine Elko and Eureka Counties, NV NV Barrick Gold Corporation Inc Gold None Tonkin Springs Mine Eureka County, NV NV Tonkin Springs Llc 

Gold None Kinross Gold Corp. Round MountaiNye County, NV NV Round Mountain Gold Corp 

Gold None Manhattan Mine Nye County, NV NV Round Mountain Gold Corp 

Gold None Hollister Operations Area Midas, NV NV Newmont Mining Corporation 

Gold 89822NWMNT25MIL Newmont Mining Corp Carlin NorthCarlin, NV NV Newmont Mining Corporation 

Gold 89822NWMNT6MAIL Newmont Mining p Cor Carlin SouthCarlin, NV NV Newmont Mining p Cor oration 

Gold None Rain Operations Area Unknown NV Newmont Mining Corporation Gold None Cortez Con Cortez Town Site HorsLander County, NV NV Cortez Gold Mines 

Gold 89821CRTZGSTARA Gold Acres Pipeline S Pipeline C Lander County, NV NV Barrick Gold Corporation Inc 

Gold 89406KNNCT55MIL Denton-Rawhide Mineral County, NV NV Kennecott Minerals Company Gold 89418FLRDCEXIT1 Florida Canyon Pershing County, NV NV Jipangu Inc. Gold None Getchell Mine Humboldt County, NV NV Placer Turquoise Ridge Inc 

Gold 89446HYCRF52MIL Crofoot Mine Humboldt County, NV NV Hycroft Resources And Deve

Gold 89801JRRTT50MIL Jerritt Canyon Elko County, NV NV Queenstake Resources USA Gold None Tinnell Mining Facility Clark County, NV NV Jetco Enterprises Inc 

Gold 89438GLMSM3MILE Marigold Humboldt County, NV NV Goldcorp Inc. 

Page 3 of 8
Primary Commodity1 TRIFID Facility Location State Majority owner 

Gold None Atlanta Mine And Mill Lincoln County, NV NV Bobcat Properties Inc 

Gold 89803BLDMN70MIL Bald Mountain White Pine County , NV NV Barrick Gold Corporation Inc Gold None Big Springs Mine Elko County, NV NV Anglo Gold 

Gold None Candelaria Mine Mineral County, NV NV Candelaria Mining Co 

Gold 89414PNSNM22MIL Pinson Mine Humboldt County, NV NV Pinson Mining Co Gold None Preble Mine Humbodlt County, NV NV Pinson Mining Co 

Gold None Sterling Mine Nye County, NV NV Sterling Gold Mining Corp 

Gold None Dee Gold Mine Elko County, NV NV Glamis Dee Gold Mining Co 

Gold None Wind Mountain Mine Washoe County, NV NV Kinross Gold Corporation Gold None Wood Gulch Mine Elko County, NV NV Homestake Mining Company 

Gold 89803LLGTR90MIL Alligator Ridge Mine White Pine County, NV NV Bald Mountain Mine Gold 89803YNKMN95MIL Yankee Mine White Pine County, NV NV Bald Mountain Mine Gold None Casino Winrock Mine White Pine County, NV NV Bald Mountain Mine 

Gold None Buffalo Valley Mine Project Lander County, NV NV Fairmile Gold Mining Inc. 

Gold None Robertson Project Lander County, NV NV Coral Resources, Inc 

Gold 89438NWMNTBEACO Mule Canyon Lander County, NV NV Newmont Mining Corporation Gold None Rosebud Mine Pershing County, NV NV Rosebud Mining Co Llc 

Gold 89438NWMNTEIGHT Newmont Mining Corp Trenton CanValmy, NV NV Newmont Mining Corporation 

Gold None Mineral Ridge Mine Esmeralda County, NV NV Golden Phoenix Minerals Inc 

Gold 89414KNSNY60MIL Midas Elko County, NV NV Newmont Mining Corporation Gold None Toiyabe Lander County, NV NV Cortez Gold Mines 

Gold None Pass Minerals Inc Clark County, NV NV Pass Minerals Inc 

Gold None Mooney Basin Project White Pine County, NV NV Bald Mountain Mine 

Gold None Storm Exploration Decline Project Elko County, NV NV Barrick Gold Corporation Inc 

Gold None Nick Mining Claims Pershing County, NV NV Gold Run Mines 

Gold None Spring Valley Mine Lyon County, NV NV Geo Nevada Inc 

Gold None L & H Claims Placer Mining Pershing County, NV NV Black Gold Mining 

Gold None Heap Leach Facility Storey County, NV NV Plum Mining Co Llc 

Gold None Willow Creek Mine (thacker ProperPershing County, NV NV Western Placer Resources In

Gold None Coyote Mine Pershing County, NV NV Rock Solid Inc 

Gold None 327 Apex Mine Washoe County, NV NV Target Minerals Inc 

Gold None Dun Glen Mine Pershing County, NV NV Vector Mining Inc 

Gold 89418FLRDCEXIT1 Standard Pershing County , NV NV Jipangu Inc. Gold None Sunroc - Mesquite Clark County, NV NV Sunroc Corporation 

Gold None Imlay Mines Pershing County, NV NV Imperial Milling Inc Gold None Hollister Develop j ment Block ProjecElko County, NV NV Richard N App g lin 

Gold None Contact Exploration Project Elko County, NV NV Golden Phoenix Minerals Inc 

Gold 89414GTCHL28MIN Turquoise Ridge Humboldt County , NV NV Unknown Gold 89820BTTLMCOPPE Phoenix Lander County , NV NV Newmont Mining Corporation Gold 57754HMSTK630ES Homestake Mining Co-Gold Div Lead, SD SD Unknown Gold 57754WHRFRTROJA Wharf Lawrence County , SD SD Wharf Resources Inc. Gold None LAC Minerals (USA+D221) Inc Lead, SD SD Unknown Gold None Golden Reward Mining Co Lead, SD SD Unknown Gold None Homestake Mining Company Lead, SD SD Unknown Gold 37881SVGZNRTE13 Mossy Creek Mining, Llc Thorn Hill, TN TN Unknown 

Gold None Asarco, Inc. Tn Mines Div. Jefferson City, TN TN Unknown 

Page 4 of 8
Primary Commodity1 TRIFID Facility Location State Majority owner 

Gold None Mossy Creek Mining, Llc Carthage, TN TN Unknown Gold 84006KNNCT8200S Barney's Canyon Salt Lake County, UT UT Kennecott Minerals Company Gold None Internation Uranium (USA) Corp San Juan County, UT UT Unknown Gold None USMK of Utah Unknown UT Unknown Gold None Clifford Sorensen Unknown UT Unknown Gold 99118CHBYN2400W K2 Mine Curlew, WA WA Unknown Gold 99166KTTLR363FI Kinross Gold Corp. Kettle River OpRepublic, WA WA Unknown 

Gold 99166LMFTMINTER Lamefoot Mine Ferry County, WA WA Kinross Gold Corporation 

Gold None Dawn Mining Co Wellpinit, WA WA Unknown Gold None Pathfinder Mines Corporation Fremont County, WY WY Unknown Gold None Gyovary, Stephen Unk, WY WY Unknown 

Gold None Green Mountain Mining Venture Fremont County, WY WY Unknown Gold None Great Lakes Metals Co Unk, WY WY Unknown Gold None Warren Anderson Bill, WY WY Unknown Gold None RPM Wy g, omin Inc. Unk, WY WY Unknown 

Iron None Pogo Mine Delta Junction, AK AK TECK-POGO INC Iron None Reserve Mining Co. - Silver Bay ScSilver Bay, MN MN Unknown 

Iron None Hunter Gold Mining, Inc. Gilpin County, CO CO Unknown Iron None Specie Ridge Holding Co., Inc. Dolores County, CO CO Unknown Iron None New Cardinal LLC Boulder County, CO CO Unknown Iron None Sunshine Precious Metals Inc Osburn, ID ID Unknown Iron None Hibbing Taconite Co. - Mining AreaHibbing, MN MN Cleveland-Cliffs Inc Iron None Midland Research Center Pengilly, MN MN Unknown Iron None Keetac Keewatin, MN MN United States Steel CorporatIron None Cliffs Erie - Hoyt Lakes Mining AreaHoyt Lakes, MN MN Unknown Iron None Cliffs Erie - Dunka Mining Area Babbitt, MN MN Unknown 

Iron None United Taconite LLC - Thunderbird Eveleth, MN MN Cleveland-Cliffs Inc Iron None Hibbing Taconite Co. - Tails Basin Hibbing, MN MN Cleveland-Cliffs Inc Iron None Minntac WWTP Mountain Iron, MN MN United States Steel CorporatIron None United Taconite Fairlane/Tailings BForbes, MN MN Cleveland-Cliffs Inc 

Iron None Minntac Mining Area Mountain Iron, MN MN United States Steel CorporatIron None Cliffs Erie - HL Tailings Basin Area Hoyt Lakes, MN MN Unknown Iron None Keewatin Taconite Operations - TaKeewatin, MN MN Unknown Iron None Minorca Mine Virginia, MN MN ArcelorMittal Minorca Mine InIron None Minntac Tailings Basin Area Mountain Iron, MN MN United States Steel CorporatIron None Laurentian Mine Gilbert, MN MN ArcelorMittal Minorca Mine In

Iron None Essar Steel Minnesota LLC Nashwauk, MN MN Unknown Iron None Mesabi Mining Hoyt Lakes, MN MN Unknown Iron None Upland Wings Sullivan, MO MO Wings Enterprises Iron None Kennecott/Ridgeway Gold Mine Ridgeway, SC SC Unknown 

Iron None Aabalon Moving Services Inc Unknown WY Unknown 

Iron None JR Simplot Company Atlantic City, WY WY Unknown Iron None Baxter Mine San Bernadino County, CA CA Hahm International Inc 

Iron None CA Portland Cement Baxter, CA CA California Portland Cement 

Iron None CF & I Pit Lawrence County, SD SD Pete Lien & Sons Inc. Iron None Dredge 21 Yuba County, CA CA Cal Sierra Development Inc. 

Page 5 of 8
Primary Commodity1 TRIFID Facility Location State Majority owner 

Iron None Silverlake Mine San Bernadino County, CA CA Hahm International Inc 

Lead 85603PHLPS36WHW Copper Queen Branch Bisbee, AZ AZ Freeport-McMoRan Copper & 

Lead None Mining Remedial Recovery Co Redding, CA CA Unknown Lead None Climax Molybdenum Company Gunnison County, CO CO US Energy/Crested Corp. Lead None Hecla Mining Co Mullan, ID ID Unknown Lead None Noranda Mining Inc Cobalt, ID ID Unknown Lead None Empire Iron Mining Partnership Palmer, MI MI Cleveland-Cliffs Inc Lead None Doe Run, Viburnum Div Viburnum, MO MO Doe Run Resources Corp. Lead None Cominco, Magmont Mine Bixby, MO MO Teck Cominco Inc. Lead 63638SWTMMHIGHW Doe Run, Sweetwater Mine/Mill Ellington, MO MO Doe Run Resources Corp. Lead None Doe Run, West Fork Unit Bunker, MO MO Doe Run Resources Corp. Lead None Doe Run,Viburnum Mine #35 Viburnum, MO MO Doe Run Resources Corp. Lead None Montana Gold & Sapphires Inc Lewis And Clark County, MT MT Unknown Lead None M & W Milling & Refining Inc Virginia City, MT MT Unknown 

Lead None Asarco Inc ( ) Mike Horse) Lewis And Clark Coun, MT MT Unknown 

Lead 88031MRCNM2010F American Minerals Inc Deming, NM NM Unknown Lead 89316RBYHLINTER Ruby Hill Mine Eureka, NV NV Homestake Mining Company Lead None Pierrepont Mine Pierrepont Manor, NY NY Unknown Lead None Mossy Creek Mining, LLC Elmwood, TN TN Unknown Lead 19720MRCNM301PI American Minerals Inc. New Castle, DE DE Unknown Lead None Doe Run Resources Corp. ViburnuIron County, MO MO Doe Run Resources Corp. 

Lead 44095SKLDC34580 Skrl Die Casting Inc Eastlake, OH OH Unknown Lead 99752RDDGP90MIL Red Dog Northwest Arctic County , AK AK Teck Cominco Inc. Lead 63629BRSHYHWYKK Doe Run, Brushy Creek Mine/Mill Reynolds County , MO MO Doe Run Resources Corp. Lead 63629FLTCHHWYTT Doe Run, Fletcher Mine/Mill Reynolds County , MO MO Doe Run Resources Corp. 

Lead 65440BCKMNHWYKK Doe Run, Buick Iron County , MO MO Doe Run Resources Corp. Lead 59638MNTNT5MILE Montana Tunnels Jefferson County , MT MT Apollo Gold Corp. Lead 65566VBRNMCASTE Viburnum #29 and #35 Washington and Iron County, MMO Doe Run Resources Corp. 

Lead/Zinc 59635SRCNCSMELT Asarco LLC Helena, MT MT Unknown Lead/Zinc None Jordanelle Special Service Dis Heber City, UT UT Unknown Lead/Zinc None Lexco, Inc.(E) Vernal, UT UT Unknown Lead/Zinc None TME - AR Mine #1 C.O TME AsphaUnknown UT Unknown 

Gold None Ren Mine Reclamation Project Elko County NV Homestake Mining Company 

Miscellaneous Ores, NEC None Lee Wynne and Pacificorp Ophir, CO CO Unknown Miscellaneous Ores, NEC 59011STLLWPOBOX East Boulder Mine Sweetgrass County, MT MT Stillwater Mining Company 

Miscellaneous Ores, NEC None Barrett's Minerals Inc. Dillon, MT MT Unknown 

Miscellaneous Ores, NEC None Asarco Inc Unknown UT Unknown Miscellaneous Ores, NEC None Asarco, Inc. - Northwestern Mining Unknown UT Unknown Miscellaneous Ores, NEC None Topaz Mine Unknown UT Unknown Miscellaneous Ores, NEC None United Park City Mines Unknown UT Unknown Miscellaneous Ores, NEC None Lilyama Historical Mine El Dorado, CA CA Rosenberg, John Miscellaneous Ores, NEC 92366MLYCRI15AN Mountain Pass Mine Mountain Pass, CA CA Molycorp Minerals LLC Miscellaneous Ores, NEC None Wajona Inc Cambria Mine Cambria, CA CA Wajona Inc Molybdenum 80468CLMXM19302 Climax Molybdenum Company Grand County, CO CO Freeport-McMoRan Copper & Molybdenum None Climax Molybdenum Company Summit County, CO CO Freeport-McMoRan Copper & Molybdenum None Questa Taos County , NM NM Chevron Mining, Inc. 

Page 6 of 8
Primary Commodity1 TRIFID Facility Location State Majority owner 

Silver None Carlota Copper Company Miami, AZ AZ Quadra Mining Ltd. Silver None Silver King Mining Company Pinal, AZ AZ RONALD R DEEN Silver None Ressurction Mining Company (Asa Lake County, CO CO Unknown 

Silver 83873SLVRVLAKEG Galena Shoshone County, ID ID U.S. Silver Corporation Gold None Santa Fe Reclamation Project MineMineral County NV Homestake Mining Company 

Silver 83846LCKYFI90EX Lucky Friday Shoshone County, ID ID Hecla Mining Company Silver None Coeur Mine Osburn, ID ID U.S. Silver Corporation 

Silver None Caladay Project Wallace, ID ID U.S. Silver - Idaho, Inc Silver None Crescent Mine Kellogg, ID ID Crescent Inc. Silver None Hecla Limited Star/Morning Wallace, ID ID Hecla Mining Company Silver None Hecla Limited National Mullan, ID ID Hecla Mining Company Silver None Hecla Limited Vienna Wallace, ID ID Hecla Mining Company Silver None Grouse Creek Unit Stanley, ID ID Hecla Mining Company Silver None Hecla Limited Hercules Wallace, ID ID Hecla Mining Company Silver None Hecla Limited Interstate Wallace, ID ID Hecla Mining py Com any 

Silver None Hecla Limited Snowstorm Mullan, ID ID Hecla Mining Company Silver None Hecla Limited Stanley Wallace, ID ID Hecla Mining Company Silver None Hecla Limited Tamarack Wallace, ID ID Hecla Mining Company Silver None Hecla Limited Tiger/Poorman Wallace, ID ID Hecla Mining Company Silver None Hecla Limited Carlisle Wallace, ID ID Hecla Mining Company Silver None Tilden Mining Co Ishpeming, MI MI Unknown Silver None Montanore Mine Lincoln County, MT MT Noranda Minerals Corp Silver None Carlin Mines Operations Elko, Eureka, Humboldt, and LaNV Newmont Mining Corporation 

Silver None Troy Lincoln County , MT MT Revett Minerals Inc. Silver None Hilltop Lander County NV Cortez Gold Mines 

Silver 89419CRRCH180EX Rochester Pershing County , NV NV Coeur d'Alene Corporation Unknown None New Fields Inc. Red Cliffe, CO CO Unknown Unknown None American Colloid Co Gascoyne Bowman County, ND ND Unknown Unknown None known Blackhawk Mill Grant County, NM NM RECWEST INC Unknown None known SPICA MINES SITE 01 Catron County, NM NM SPICA MINES LLC Unknown None Cobre Mining Company Grant County, NM NM Freeport-McMoRan Copper & 

Unknown None Cyprus Pinos Altos Grant County, NM NM Freeport-McMoRan Copper & Unknown None Deming Tailing Area Luna County, NM NM Freeport-McMoRan Copper & Unknown None Section 35 Mine Mckinley County, NM NM Rio Algom Mining LLC 

Unknown None Waldo Socorro County, NM NM Asarco LLC 

Unknown None Dy g pp natec Drilling Supplies, Inc Unknown UT Unknown 

Unknown None RDW, LLS Unknown UT Unknown Unknown None Washington Mine French Gulch, CA CA French Gulch Nevada Mining Uranium None Rio Algom Mining LLC/Ambrosia LaGrants, NM NM Rio Algom Mining LLC 

Uranium None Rio Grande Resources CorporationSan Mateo, NM (Cibola CountyNM Rio Grande Resources Corpo

Uranium None Rio Puerco Uranium Mine Milan, NM NM Mineral Energy & Technology Uranium/Radium/Vanadium None Cotter Corporation Golden, CO CO Unknown Uranium/Radium/Vanadium None Homestake Mining Company of CaSargents, CO CO Unknown 

Uranium/Radium/Vanadium None Leadville Corporation Leadville, CO CO Unknown 

Uranium/Radium/Vanadium None Cotter Corporation Naturita, CO CO Unknown Uranium/Radium/Vanadium None US Department of Energy/SM Stro Durango, CO CO Unknown 

Page 7 of 8
Primary Commodity1 TRIFID Facility Location State Majority owner 

Uranium/Radium/Vanadium None Energy Fuels Resources Corp Gateway, CO CO Unknown Uranium/Radium/Vanadium None Northshore Mining/Silver Bay P Silver Bay, MN MN Cleveland-Cliffs Inc Uranium/Radium/Vanadium None Haile Gold Mine Kershaw, SC SC Unknown Uranium/Radium/Vanadium None Energy Fuels Resources Corporati Unknown UT Unknown Uranium/Radium/Vanadium None Denison Mines (USA) Corp Unknown UT Unknown Uranium/Radium/Vanadium None Kennecott Uranium Company Unknown WY Unknown Uranium/Radium/Vanadium None Cogema Mining, Inc. Unk, WY WY Unknown Uranium/Radium/Vanadium None Green Mountain Mining Venture Natrona, WY WY Unknown Uranium/Radium/Vanadium None Green Mountain Mining Venture Jeffrey City, WY WY Unknown Uranium/Radium/Vanadium None US Energy Corporation Unk, WY WY Unknown Uranium/Radium/Vanadium None Umetco Minerals Corporation Natrona County, WY WY Unknown Uranium/Radium/Vanadium None Power Resources, Inc. Coinverse County, WY WY Unknown Uranium/Radium/Vanadium None Cogema Mining, Inc. Unk, WY WY Unknown Uranium/Radium/Vanadium None Kennecott Uranium Company Unk, WY WY Unknown Zinc 99801KNNCT13401 Greens Creek Juneau County , AK AK Kennecott Minerals Comp y an Zinc 13642ZCMNS408SY Balmat St. Lawrence County , NY NY Hudbay Minerals Inc. Zinc 37760SRCNC420WB ETZC Coy Mine Jefferson City, TN TN Glencore International AG 

Zinc 37871SRCNC1977W ETZC Young Mine and Mill Strawberry Plains, TN TN Glencore International AG 

Zinc 37806SRCNC2160I ETZC Immel Mine Mascot, TN TN Glencore International AG 

Zinc 99153PNDRL1382P Pend Oreille Pend Oreille County, WA WA Teck Cominco Inc. Copper None Zonia Mine Yavapai County, AZ AZ ARIMETCO INC 

Copper 79915PHLPS897HA El Paso Refinery El Paso, TX TX Freeport-McMoRan Copper & Copper 79120SRCNCHWY13 Amarillo Refinery Amarillo, TX TX Asarco LLC 

1Determined in some cases from Primary SIC Code2Indicates monitoring data associated with the primary NPDES ID3Indicate NPDES IDs that correspond to other permits (stormwater or industrial) associated with the facility listed. Additional NPDES IDs were identified primaril

Source: 2004 USGS Minerals Yearbook , 2006 USGS Minerals Yearbook , 2007 USGS Minerals Yearbook , PCSLoads2004_v4, DMRLoads2007_v3, TRICalcu

(available online at: http://www.epa.gov/enviro).

Page 8 of 8