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 |
|---|---|---|---|---|
| TrampMontrose, COMSHA 0502563 | Uranium OreUnderground | AbandonedStatus date: 12/08/1977 | Blue Rock Energy CorpReported operatorBlue Rock Resources LtdReported controller | Neither history importedView source coverage → |
| Trappers MineMoffat, COMSHA 0503426 | Construction Sand and GravelSurface | AbandonedStatus date: 02/10/1983 | Schmidt-Tiago Construction CompanyReported operatorRogers Construction IncReported controller | Neither history importedView source coverage → |
| Treasure Mountain ProjuctSan Juan, COMSHA 0503680 | Gold OreUnderground | AbandonedStatus date: 07/21/1982 | Noranda Exploration IncReported operatorNoranda IncReported controller | Neither history importedView source coverage → |
| Treece LakeMesa, COMSHA 0503907 | Construction Sand and GravelSurface | AbandonedStatus date: 05/30/1985 | Corn Construction CompanyReported operatorLarry W CornReported controller | Neither history importedView source coverage → |
| TreiberLarimer, COMSHA 0502629 | Construction Sand and GravelSurface | AbandonedStatus date: 07/07/1988 | Sterling Sand & Gravel CompanyReported operatorRedland PlcReported controller | Neither history importedView source coverage → |
| Tricon Kent Co Portable Crushing PlantDouglas, COMSHA 0504290 | Construction Sand and GravelSurface | AbandonedStatus date: 04/23/1990 | Tricon Kent CompanyReported operatorKent John GReported controller | Neither history importedView source coverage → |
| TrimWashington, COMSHA 0503385 | Construction Sand and GravelSurface | AbandonedStatus date: 10/09/1979 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| Trinidad Basin MineLas Animas, CONear DelaguaMSHA 0503065 | Coal (Bituminous)Surface | Abandoned and SealedStatus date: 02/11/1986 | Trinidad Basin Mining IncReported operatorMills VanceReported controller | Neither history importedView source coverage → |
| Tripoli Red Granite QuarryJefferson, CONear WheatridgeMSHA 0504103 | Crushed, Broken GraniteType not reported | AbandonedStatus date: 01/01/1987 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Troublesome PitGrand, COMSHA 0503639 | Construction Sand and GravelSurface | AbandonedStatus date: 08/12/1982 | Grand County Road & Bridge DepartmentReported operatorGrand County-CoReported controller | Neither history importedView source coverage → |
| Trout CreekRoutt, CONear Oak CreekMSHA 0503228 | Coal (Bituminous)Surface | AbandonedStatus date: 12/01/1978 | Pittsburg & Midway Coal Mining CompanyReported operatorChevron CorporationReported controller | Neither history importedView source coverage → |
| Trout Creek No 2Routt, CONear MilnerMSHA 0503419 | Coal (Bituminous)Surface | AbandonedStatus date: 10/25/1979 | Sun Coal Company IncReported operatorMassey Energy CompanyReported controller | Neither history importedView source coverage → |
| Truitt PitMesa, COMSHA 0503656 | Construction Sand and GravelSurface | AbandonedStatus date: 04/23/1985 | Rippy Construction CompanyReported operatorRippy Construction CompanyReported controller | Neither history importedView source coverage → |
| Tucson PlantAdams, CONear BrightonMSHA 0504665 | Construction Sand and GravelSurface | AbandonedStatus date: 01/01/2010 | Aggregate Industries WCR IncReported operatorAmrize LtdReported controller | Production / employmentSafety recordsView source coverage → |
| TUCSON RESOURCESAdams, COMSHA 0504533 | Construction Sand and GravelSurface | AbandonedStatus date: 06/15/1998 | Hall-Irwin Construction CompanyReported operatorGeorge W HallReported controller | Neither history importedView source coverage → |
| TungstenBoulder, COMSHA 0503524 | Tungsten OreUnderground | AbandonedStatus date: 10/20/1981 | Erma Shepherd & Harold StocktonReported operatorErma Shepherd & Harold StocktonReported controller | Neither history importedView source coverage → |
| Turkey Flats Pit 17Jefferson, COMSHA 0503969 | Construction Sand and GravelSurface | AbandonedStatus date: 09/23/1986 | Western Paving Construction CompanyReported operatorKoppers Co Inc & Redland PlcReported controller | Neither history importedView source coverage → |
| Turnpike PitBoulder, COMSHA 0500975 | Construction Sand and GravelSurface | AbandonedStatus date: 09/27/1982 | Flatiron Sand & Gravel CompanyReported operatorFlatiron Paving CompanyReported controller | Neither history importedView source coverage → |
| Turnpike PitWeld, COMSHA 0502550 | Construction Sand and GravelSurface | AbandonedStatus date: 07/07/1989 | Turnpike ConstructionReported operatorTurnpike ConstructionReported controller | Neither history importedView source coverage → |
| Turnpike - Wet Plant Weld, CONear ErieMSHA 0505044 | Construction Sand and GravelSurface | AbandonedStatus date: 10/01/2024 | Asphalt Specialties Co., Inc.Reported operatorDaniel W HuntReported controller | Production / employmentSafety recordsView source coverage → |
| Twenty Mile MineRoutt, CONear Steamboat SpringsMSHA 0503266 | Coal (Bituminous)Surface | AbandonedStatus date: 01/06/1984 | Energy Fuels CorpReported operatorEnergy Fuels Coal Resources LtdReported controller | Neither history importedView source coverage → |
| Twilight No 1Montrose, COMSHA 0501714 | Uranium-Vanadium OreUnderground | AbandonedStatus date: 05/23/1979 | U S Bureau Of MinesReported operatorUnited States GovernmentReported controller | Neither history importedView source coverage → |
| Twin Creek CampgroundTeller, CONear FlorissantMSHA 0504809 | Construction Sand and GravelSurface | AbandonedStatus date: 12/14/2005 | A-C Concrete & MaterialsReported operatorHarold E ClareReported controller | Production / employmentSafety recordsView source coverage → |
| Twin PinesFremont, CONear RockvaleMSHA 0500252 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 10/01/1981 | Twin Pines Coal CompanyReported operatorFazzino Budgie & Joe CarpineReported controller | Neither history importedView source coverage → |
| Twin Pines No 2 Coal MineFremont, CONear FlorenceMSHA 0503793 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 08/12/1999 | Twin Pines Investment Ltd Ptnrship/Falcon EnergyReported operatorFalcon Energy IncReported controller | Neither history importedView source coverage → |
| Twin SistersPark, COMSHA 0503782 | Gold OreFacility | AbandonedStatus date: 08/23/1982 | Sr Operating Company IncReported operatorMeradith R LReported controller | Neither history importedView source coverage → |
| Two River Investment PitEagle, COMSHA 0503912 | Construction Sand and GravelSurface | AbandonedStatus date: 05/30/1985 | Corn Construction CompanyReported operatorLarry W CornReported controller | Neither history importedView source coverage → |
| Two Rivers Investment Co PitEagle, COMSHA 0503355 | Construction Sand and GravelSurface | AbandonedStatus date: 08/13/1982 | Corn Construction CompanyReported operatorLarry W CornReported controller | Neither history importedView source coverage → |
| Two Rivers NorthEagle, COMSHA 0503356 | Construction Sand and GravelSurface | AbandonedStatus date: 08/13/1982 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| T & W Sand & GravelJefferson, COMSHA 0502331 | Construction Sand and GravelSurface | AbandonedStatus date: 06/17/1981 | T & W Sand & Gravel CompanyReported operatorWinslow Construction CompanyReported 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.