HISTORICAL SITES / RESEARCH DIRECTORY
Find the public record behind a former mining site. Explore reported locations, mined materials and operating history as a starting point for acquisition, reuse or reclamation research.
History means records exist in the imported sources, including older periods. Missing history is not evidence of a clean safety record. Operator and controller names are the last relationships reported in the Mines snapshot; they are not verified current property owners.
| Mine / reported location | Material / type | Reported status | Reported relationships | Available history |
|---|---|---|---|---|
| U752 Mobile CrusherSaguache, CONear SaguacheMSHA 0504334 | Construction Sand and GravelSurface | AbandonedStatus date: 10/23/2018 | Saguache County Road and BridgeReported operatorSaguache County - CoReported controller | Production / employmentSafety recordsView source coverage → |
| UintahSan Miguel, COMSHA 0503085 | Uranium OreUnderground | AbandonedStatus date: 08/27/1979 | W D Tripp Mining CompanyReported operatorTripp W D Mining CompanyReported controller | Neither history importedView source coverage → |
| Ulrich Pit Hard Rock #1Chaffee, COMSHA 0500991 | Construction Sand and GravelSurface | AbandonedStatus date: 04/23/1985 | Hard Rock Paving & Redi-Mix IncReported operatorJohn L AryReported controller | Neither history importedView source coverage → |
| Una PitGarfield, COMSHA 0503551 | Construction Sand and GravelSurface | AbandonedStatus date: 05/30/1985 | Corn Construction CompanyReported operatorLarry W CornReported controller | Neither history importedView source coverage → |
| Unaweep PitMesa, COMSHA 0503579 | Construction Sand and GravelSurface | AbandonedStatus date: 08/26/1981 | Nielsons IncReported operatorNielsons Holding CompanyReported controller | Neither history importedView source coverage → |
| Unaweep QuarryMesa, COMSHA 0504190 | Crushed, Broken GraniteSurface | AbandonedStatus date: 05/08/1987 | L G Everist IncReported operatorL G Everist IncReported controller | Neither history importedView source coverage → |
| Union #5Park, COMSHA 0503866 | Gold OreUnderground | AbandonedStatus date: 09/05/1985 | Quasar Mine Services Corp (Usa)Reported operatorQuasar Mine Services Corp (Usa)Reported controller | Neither history importedView source coverage → |
| Union Carbide PitGarfield, COMSHA 0503880 | Construction Sand and GravelSurface | AbandonedStatus date: 05/30/1985 | Corn Construction CompanyReported operatorLarry W CornReported controller | Neither history importedView source coverage → |
| Unit #1 Pagosa Sand & GravelMineral, COMSHA 0504170 | Construction Sand and GravelSurface | AbandonedStatus date: 09/17/1990 | Pagosa Sand & GravelReported operatorPagosa Sand & GravelReported controller | Neither history importedView source coverage → |
| Unit No 477Montrose, COMSHA 0502914 | Construction Sand and GravelSurface | AbandonedStatus date: 02/22/1983 | Montrose CountyReported operatorMontrose County-CoReported controller | Neither history importedView source coverage → |
| Unit Train LoadoutMesa, CONear PalisadeMSHA 0503234 | Coal (Bituminous)Facility | AbandonedStatus date: 04/01/1998 | Lodestar Energy IncReported operatorIracoal IncorporatedReported controller | Neither history importedView source coverage → |
| Unit Train Loadout FacilityPitkin, CONear CarbondaleMSHA 0503502 | Coal (Bituminous)Facility | AbandonedStatus date: 05/01/1987 | Snowmass Coal CompanyReported operatorRoaring Fork Coal Corp & Lark Mng CorpReported controller | Neither history importedView source coverage → |
| Universal #1Grand, COMSHA 0504149 | Construction Sand and GravelSurface | AbandonedStatus date: 08/22/1990 | Certified Reddi Mix IncReported operatorEdgar D HarrisReported controller | Neither history importedView source coverage → |
| Universal 22-36 PrimaryEagle, COMSHA 0503484 | Construction Sand and GravelSurface | AbandonedStatus date: 09/11/1985 | Nottingham Sand & GravelReported operatorNottingham Randy & StevenReported controller | Neither history importedView source coverage → |
| Universal Peat Sand & Gravel IncorporatePark, COMSHA 0500468 | Misc. Nonmetallic Mnls. NECSurface | AbandonedStatus date: 05/21/1982 | Universal Peat Sand & GravelReported operatorMerrill WrightReported controller | Neither history importedView source coverage → |
| Upper Mountain Top MineOuray, CONear OurayMSHA 0504980 | Silver OreUnderground | AbandonedStatus date: 08/11/2014 | The Mining CompanyReported operatorKenneth J Orvis; Cristy L OrvisReported controller | Production / employmentSafety recordsView source coverage → |
| Ura MineMontrose, COMSHA 0501653 | Uranium-Vanadium OreUnderground | AbandonedStatus date: 04/11/1989 | Reams Construction CompanyReported operatorReams JohnReported controller | Neither history importedView source coverage → |
| Uranus MineMontrose, CONear Naturita, Colo.MSHA 0504925 | Uranium OreUnderground | AbandonedStatus date: 04/20/2009 | Nuvemco LLCReported operatorEMSU LLCReported controller | Production / employmentView source coverage → |
| Uravan Remedial Action ProjectMontrose, COMSHA 0501785 | Dimension SandstoneSurface | AbandonedStatus date: 02/02/1994 | Umetco Minerals CorpReported operatorUnion Carbide CorpReported controller | Neither history importedView source coverage → |
| U S B M No 1 ShaftRio Blanco, COMSHA 0503046 | Oil ShaleUnderground | AbandonedStatus date: 11/02/1983 | Multi Mineral CorpReported operatorCharter Oil CompanyReported controller | Neither history importedView source coverage → |
| U S Soil M & M PlantFremont, COMSHA 0504388 | Chem. and Fertil. Mnls. NECSurface | AbandonedStatus date: 10/24/1989 | U S Soil M & MReported operatorU S Soil M & MReported controller | Neither history importedView source coverage → |
| UteDouglas, COMSHA 0500219 | Common Clays NECSurface | AbandonedStatus date: 04/01/1991 | Robinson Brick CompanyReported operatorF George Robinson JrReported controller | Neither history importedView source coverage → |
| UTE PASS CONCRETE SAND & GRAVELTeller, CONear Woodland ParkMSHA 0503962 | Construction Sand and GravelSurface | AbandonedStatus date: 08/19/2004 | Ute Pass Concrete Sand & Gravel IncReported operatorChris Pyles; Sue PylesReported controller | Production / employmentSafety recordsView source coverage → |
| Ute Ule Mine & MillHinsdale, COMSHA 0502945 | Gold OreFacility | AbandonedStatus date: 02/12/1996 | Golden Wonder Mining LlcReported operatorMc Donald KerryReported controller | Neither history importedView source coverage → |
| Vader PitGunnison, COMSHA 0500986 | Construction Sand and GravelSurface | AbandonedStatus date: 07/08/1985 | Valco IncReported operatorThomas E BrubakerReported controller | Neither history importedView source coverage → |
| Valco Gunnison ConcreteGunnison, COMSHA 0502177 | Construction Sand and GravelSurface | AbandonedStatus date: 06/03/1991 | Valco IncReported operatorThomas E BrubakerReported controller | Neither history importedView source coverage → |
| Valco Wiley PitProwers, COMSHA 0502829 | Construction Sand and GravelSurface | AbandonedStatus date: 04/23/1985 | Valco IncReported operatorThomas E BrubakerReported controller | Neither history importedView source coverage → |
| Valley Forge MineSan Juan, COMSHA 0503174 | Lead-Zinc OreUnderground | AbandonedStatus date: 08/18/1981 | Z M K Mining CompanyReported operatorZanett Richard GReported controller | Neither history importedView source coverage → |
| Valley Mesa PitDelta, COMSHA 0503186 | Construction Sand and GravelSurface | AbandonedStatus date: 03/07/1983 | Valley Mesa Materials IncReported operatorValley Mesa Materials IncReported controller | Neither history importedView source coverage → |
| Valley Stone CompanyBoulder, COMSHA 0504369 | Dimension SandstoneSurface | AbandonedStatus date: 08/27/1993 | Valley Stone CompanyReported operatorStafford StanReported controller | Neither history importedView source coverage → |
Use the mine name and reported location to investigate county parcel and title records, mineral rights, access and planning constraints. MSHA mailing addresses are addresses of record and may not locate the mine. Confirm the parcel and current ownership separately.
EPA mine-site redevelopment primer ↗Check official reclamation inventories and state or tribal programmes for documented hazards, project status and programme criteria. A matching name or an MSHA abandoned status alone does not confirm a programme match.
OSMRE abandoned mine land programme ↗Source: MSHA public datasets. Production history checks quarterly and annual mine production/employment records. Safety history checks violations, inspections and accident reports; other source coverage is available on each mine profile.