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 |
|---|---|---|---|---|
| ApacheEl Paso, COMSHA 0501851 | Fire ClaySurface | AbandonedStatus date: 04/01/1991 | Robinson Brick CompanyReported operatorF George Robinson JrReported controller | Neither history importedView source coverage → |
| Apache Pyrite Joint Venture MillLake, COMSHA 0502812 | PyritesFacility | AbandonedStatus date: 05/02/1989 | Apache Energy & MineralsReported operatorThompson R StanleyReported controller | Neither history importedView source coverage → |
| Apex #2Routt, CONear Oak CreekMSHA 0500289 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 08/24/1987 | Sunland Mining CorpReported operatorPyro Energy CorpReported controller | Neither history importedView source coverage → |
| Apex Trust MineFremont, COMSHA 0503457 | Lead-Zinc OreUnderground | AbandonedStatus date: 12/21/1979 | Ideal Energy CompanyReported operatorIdeal Energy CompanyReported controller | Neither history importedView source coverage → |
| A P Green RefractoriesPueblo, COMSHA 0502622 | Fire ClayFacility | AbandonedStatus date: 05/21/1982 | A P Green Refractories IncReported operatorUSG CorporationReported controller | Neither history importedView source coverage → |
| April MineMontrose, COMSHA 0503166 | Uranium-Vanadium OreUnderground | AbandonedStatus date: 03/24/1980 | Earl BellReported operatorEarl BellReported controller | Neither history importedView source coverage → |
| A Q #1Mesa, COMSHA 0503263 | GemstonesUnderground | AbandonedStatus date: 07/08/1985 | Allen B Smith & Charles FedlerReported operatorSmith Allen B & Charles FedlerReported controller | Neither history importedView source coverage → |
| ARAPAHOE COUNTY PITArapahoe, COMSHA 0503269 | Construction Sand and GravelSurface | AbandonedStatus date: 05/23/2000 | Arapahoe County Road & BridgeReported operatorArapahoe County-CoReported controller | Production / employmentSafety recordsView source coverage → |
| Araphoe PitBoulder, COMSHA 0501898 | Construction Sand and GravelSurface | AbandonedStatus date: 07/17/1985 | Flatiron Sand & Gravel CompanyReported operatorFlatiron Paving CompanyReported controller | Neither history importedView source coverage → |
| ArcubyMesa, COMSHA 0503908 | Construction Sand and GravelSurface | AbandonedStatus date: 05/30/1985 | Corn Construction CompanyReported operatorLarry W CornReported controller | Neither history importedView source coverage → |
| Argo MillClear Creek, COMSHA 0504085 | Construction Sand and GravelFacility | AbandonedStatus date: 07/28/1989 | Argo MillReported operatorMaxwell James NReported controller | Neither history importedView source coverage → |
| ARIKAREE/LIMON PITLincoln, CONear LimonMSHA 0504713 | Construction Sand and GravelSurface | AbandonedStatus date: 03/14/2006 | Lafarge West IncorporatedReported operatorHolcim LtdReported controller | Production / employmentSafety recordsView source coverage → |
| Arkansas PitLake, COMSHA 0500955 | Construction Sand and GravelSurface | AbandonedStatus date: 06/19/1978 | C Ryan & Son IncReported operatorRobert L RyanReported controller | Neither history importedView source coverage → |
| Arkansas Valley AlfalfaProwers, COMSHA 0503339 | Construction Sand and GravelSurface | AbandonedStatus date: 01/08/1981 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| Arkins QuarryLarimer, CONear Lyons MSHA 0505065 | Dimension SandstoneSurface | AbandonedStatus date: 06/21/2019 | Holliday Mining LLCReported operatorJohn E HollidayReported controller | Production / employmentSafety recordsView source coverage → |
| A R M Pad And ClaimsTeller, COMSHA 0503690 | Gold OreFacility | AbandonedStatus date: 08/03/1989 | American Rare Minerals IncReported operatorCleff HowardReported controller | Neither history importedView source coverage → |
| Armstead PitWeld, COMSHA 0503991 | Construction Sand and GravelSurface | AbandonedStatus date: 07/07/1989 | Weld County CorpReported operatorWeld County CorpReported controller | Neither history importedView source coverage → |
| Arrowhead #25 And #34Mesa, COMSHA 0503270 | Uranium-Vanadium OreUnderground | AbandonedStatus date: 09/08/1980 | Rollie Krabbe MiningReported operatorKrabbe RollieReported controller | Neither history importedView source coverage → |
| Arrowhead 26Mesa, COMSHA 0503271 | Uranium OreUnderground | AbandonedStatus date: 05/14/1979 | Durfee Mining CompanyReported operatorDurfee FredReported controller | Neither history importedView source coverage → |
| Ary Airport PitPueblo, CONear Canon CityMSHA 0504548 | Construction Sand and GravelSurface | AbandonedStatus date: 06/03/2005 | J P MaterialsReported operatorJohn PaliderReported controller | Production / employmentSafety recordsView source coverage → |
| ASCI CR 22Weld, CONear FirestoneMSHA 0504690 | Construction Sand and GravelSurface | AbandonedStatus date: 10/02/2020 | Asphalt Specialties Co IncReported operatorDaniel W HuntReported controller | Production / employmentSafety recordsView source coverage → |
| ASCI CR 23Weld, CONear Ft. LuptonMSHA 0504848 | Construction Sand and GravelSurface | AbandonedStatus date: 01/14/2020 | Asphalt Specialties Co IncReported operatorDaniel W HuntReported controller | Production / employmentSafety recordsView source coverage → |
| Asper PitEl Paso, COMSHA 0503125 | Construction Sand and GravelSurface | AbandonedStatus date: 07/23/1979 | El Paso County Dept Of TransportationReported operatorEl Paso County-CoReported controller | Neither history importedView source coverage → |
| Atlas-BonanzaMesa, COMSHA 0502942 | Uranium OreUnderground | AbandonedStatus date: 01/19/1979 | Rajah Ventures LtdReported operatorSwerdfeger R MReported controller | Neither history importedView source coverage → |
| Auburn MineSan Juan, COMSHA 0503087 | Silver OreUnderground | AbandonedStatus date: 03/04/1980 | Auburn Mining CorpReported operatorAuburn Mining CorpReported controller | Neither history importedView source coverage → |
| AURORA PIT S-4Arapahoe, CONear PORTABLEMSHA 0503570 | Construction Sand and GravelSurface | AbandonedStatus date: 03/10/2003 | Rio Grande Company-Sand & Gravel DivReported operatorRio Grande CompanyReported controller | Production / employmentSafety recordsView source coverage → |
| AurumBoulder, COMSHA 0503634 | Gold OreUnderground | AbandonedStatus date: 07/03/1985 | Aurum Enterprises IncReported operatorSchifano William PReported controller | Neither history importedView source coverage → |
| Austin PitDelta, CONear DenverMSHA 0504655 | Construction Sand and GravelSurface | AbandonedStatus date: 11/26/2010 | All American Resources LLCReported operatorKent CottenReported controller | Production / employmentSafety recordsView source coverage → |
| AyersMontrose, COMSHA 0503405 | Construction Sand and GravelSurface | AbandonedStatus date: 07/31/1979 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| Azco PitFremont, CONear Canon CityMSHA 0504797 | Construction Sand and GravelSurface | AbandonedStatus date: 11/15/2005 | Azco Construction Inc.Reported operatorRon WalkerReported controller | Production / employmentSafety recordsView 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.