HISTORICAL SITES / RESEARCH DIRECTORY

Abandoned mines in Colorado

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.

2,230 matching recordsMSHA snapshot · 2026-10-31

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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 locationMaterial / typeReported statusReported relationshipsAvailable history
Alma Queen MinePark, COMSHA 0504086Gold OreUndergroundAbandonedStatus date: 03/24/1986Alma Queen MineReported operatorZvonkovich Joseph & Michael TrouskolReported controllerNeither history importedView source coverage →
Alma Resources IncorporatedPark, COMSHA 0504427Gold OreSurfaceAbandonedStatus date: 10/01/1992Alma Resourcers IncReported operatorOpfer Harvey EReported controllerNeither history importedView source coverage →
Alpha Cosair (Cowboy Johnson)Mineral, COMSHA 0503307Silver OreUndergroundAbandonedStatus date: 09/24/1986Minerals Engineering CompanyReported operatorFoust TonyReported controllerNeither history importedView source coverage →
ALPINE CEMENT & GRAVEL LLCMesa, CONear MolinaMSHA 0504732Construction Sand and GravelSurfaceAbandonedStatus date: 01/23/2003ALPINE CEMENT & GRAVEL LLCReported operatorKenneth StrongReported controllerSafety recordsView source coverage →
ALPINE PITSummit, CONear BreckenridgeMSHA 0503051Construction Sand and GravelSurfaceAbandonedStatus date: 10/01/2015Alpine Rock CompanyReported operatorJeffrey W Keller; John M KellerReported controllerProduction / employmentSafety recordsView source coverage →
ALPS JUNCTION QUARRYLake, CONear LeadvilleMSHA 0504563Crushed, Broken Stone NECSurfaceAbandonedStatus date: 10/23/2018Leadville Research & Development CorpReported operatorShane L CooperReported controllerProduction / employmentSafety recordsView source coverage →
Alta ProjectSan Miguel, COMSHA 0504409Gold OreSurfaceAbandonedStatus date: 05/26/1992Socorro Mining IncReported operatorSwartout Andrew TReported controllerNeither history importedView source coverage →
Alumet Pilot PlantJefferson, COMSHA 0502839Misc. Nonmetallic Mnls. NECFacilityAbandonedStatus date: 02/09/1979Alumet CompanyReported operatorAlumet CompanyReported controllerNeither history importedView source coverage →
Amarillo MinePark, COMSHA 0503739Gold OreSurfaceAbandonedStatus date: 12/10/1984Amarillo Mining IncReported operatorBox Boyce MReported controllerNeither history importedView source coverage →
AMERICAN LODE MINE INC.Park, COMSHA 0503694Gold OreUndergroundAbandonedStatus date: 11/18/1996American Lode Mine IncReported operatorFlynn Bill & Ronnie PhillipsReported controllerNeither history importedView source coverage →
American MillPark, COMSHA 0502254Gold OreFacilityAbandonedStatus date: 07/03/1984Alma American Milling CorpReported operatorCoors William KReported controllerNeither history importedView source coverage →
AMES PORTABLE UNIT # 4Adams, CONear AdamsMSHA 0504561Construction Sand and GravelSurfaceAbandonedStatus date: 11/04/2002Ames Construction IncReported operatorRaymond AmesReported controllerProduction / employmentSafety recordsView source coverage →
Am Gilsonite Loading & Bagging PltMoffat, COMSHA 0502842GilsoniteFacilityAbandonedStatus date: 03/12/1979American Gilsonite CompanyReported operatorR E NelsonReported controllerNeither history importedView source coverage →
AmickRio Blanco, COMSHA 0503183Construction Sand and GravelSurfaceAbandonedStatus date: 02/14/1980Bailey Construction CompanyReported operatorBailey Arlie FReported controllerNeither history importedView source coverage →
AmityLake, COMSHA 0503863Silver OreUndergroundAbandonedStatus date: 07/03/1985Windsor Resources (Us) LtdReported operatorWindsor Resources IncReported controllerNeither history importedView source coverage →
A & M MineDouglas, COMSHA 0503626Construction Sand and GravelSurfaceAbandonedStatus date: 07/05/1985Castle Rock AggregatesReported operatorShelton Stanley EReported controllerNeither history importedView source coverage →
A & M Rock Quarry & PlantDouglas, COMSHA 0503124PumiceSurfaceAbandonedStatus date: 07/26/1979Herren & Strong IncReported operatorHerren & Strong IncReported controllerNeither history importedView source coverage →
Anchor Tresner Coal UnitMesa, CONear FruitaMSHA 0503170Coal (Bituminous)UndergroundAbandoned and SealedStatus date: 10/01/1981Coal Fuels CorpReported operatorHoyl Alfred GReported controllerNeither history importedView source coverage →
Andrews Pit #2Kit Carson, COMSHA 0504122Construction Sand and GravelSurfaceAbandonedStatus date: 06/01/1987Andrews Sand & GravelReported operatorOrtis AndrewsReported controllerNeither history importedView source coverage →
Anglo Saxon #2San Juan, COMSHA 0503091Silver OreUndergroundAbandonedStatus date: 06/08/1982Pandora Mining CompanyReported operatorLoper Ray & Mary SullivanReported controllerNeither history importedView source coverage →
Animas AggregatesLa Plata, COMSHA 0502708Construction Sand and GravelSurfaceAbandonedStatus date: 02/28/1986Animas Aggregates IncReported operatorRichard TibbitsReported controllerNeither history importedView source coverage →
Animas Aggregate Supply, LLCSan Juan, CONear SilvertonMSHA 0505137Construction Sand and GravelSurfaceAbandonedStatus date: 02/10/2022Animas Aggregate Supply, LLCReported operatorAnthony Casternovia; Randy HanfordReported controllerSafety recordsView source coverage →
Animas PitMontezuma, COMSHA 0502396Construction Sand and GravelSurfaceAbandonedStatus date: 06/29/1981Nielsons IncReported operatorNielsons Holding CompanyReported controllerNeither history importedView source coverage →
Anna MayMontrose, COMSHA 0503053Uranium-Vanadium OreUndergroundAbandonedStatus date: 10/14/1981Nuvemco LLCReported operatorEMSU LLCReported controllerNeither history importedView source coverage →
Ann Lc-Sr-161San Miguel, COMSHA 0502980Uranium OreUndergroundAbandonedStatus date: 05/04/1978St Jude Mining CompanyReported operatorHaldane RichardReported controllerNeither history importedView source coverage →
Ansley / 9 PitPark, CONear FairplayMSHA 0504600Construction Sand and GravelSurfaceAbandonedStatus date: 11/01/2022Heartland Aggregate MiningReported operatorMexted Enterprises Inc; RGV LLC; Heartland Environmental Services LLCReported controllerProduction / employmentSafety recordsView source coverage →
ANTERO GRAVEL PITHuerfano, CONear LascarMSHA 0505079Construction Sand and GravelSurfaceAbandonedStatus date: 11/06/2023KW SCHRAMEK LANDSCAPE MATERIALSReported operatorKevin Wayne SchramekReported controllerProduction / employmentSafety recordsView source coverage →
Antonito PlantConejos, CONear AntonitoMSHA 0501883PerliteSurfaceAbandonedStatus date: 11/24/2009Harborlite CorporationReported operatorImerys S AReported controllerProduction / employmentSafety recordsView source coverage →
Anvil Points MineRio Blanco, COMSHA 0502500Oil ShaleUndergroundAbandonedStatus date: 09/28/1984U S Department Of EnergyReported operatorUnited States GovernmentReported controllerNeither history importedView source coverage →
Aorta TunnelClear Creek, COMSHA 0503763Gold OreUndergroundAbandonedStatus date: 06/23/1982Marquette Minerals IncReported operatorHeon Raymond PReported controllerNeither history importedView source coverage →

Take the research further

Acquisition & reuse

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 ↗

Reclamation projects

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.