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.

2,227 matching recordsMSHA snapshot · 2026-10-28

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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
#835 CrusherPark, CONear FairplayMSHA 0505148Construction Sand and GravelSurfaceAbandonedStatus date: 09/04/2024Park County Public WorksReported operatorPark County-COReported controllerProduction / employmentSafety recordsView source coverage →
8-Mile Clay MineFremont, COMSHA 0503925Fire ClaySurfaceAbandonedStatus date: 02/17/1993Summit Pressed Brick & Tile CompanyReported operatorJoseph C WelteReported controllerNeither history importedView source coverage →
8-MILE GRAVEL PIT-WESTFremont, COMSHA 0504449Construction Sand and GravelSurfaceAbandonedStatus date: 09/14/1999Rocky Mountain Materials & Asphalt IncReported operatorStephen SchnurrReported controllerProduction / employmentView source coverage →
ABBOTT PITOuray, CONear RidgewayMSHA 0502626Construction Sand and GravelSurfaceAbandonedStatus date: 07/19/2004Abbott Ready Mix IncReported operatorRobert L AbbottReported controllerProduction / employmentSafety recordsView source coverage →
Ada Bell MineTeller, COMSHA 0503540Gold OreUndergroundAbandonedStatus date: 05/15/1981Colorado Gold & Silver IncReported operatorM C ReevesReported controllerNeither history importedView source coverage →
Adams Pit 512Mesa, COMSHA 0502358Construction Sand and GravelSurfaceAbandonedStatus date: 05/24/1985Whitewater Building Materials CorpReported operatorLois Gardner; Arline M StewartReported controllerNeither history importedView source coverage →
Adams PlantAdams, COMSHA 0501029Construction Sand and GravelSurfaceAbandonedStatus date: 09/27/1993Mobile Premix Sand & Gravel CompanyReported operatorRedland PlcReported controllerNeither history importedView source coverage →
Adams Transit MixAdams, COMSHA 0500927Construction Sand and GravelSurfaceAbandonedStatus date: 06/17/1981Adams Transit Mix CorpReported operatorBaumgartner H EReported controllerNeither history importedView source coverage →
Adobe Longhorn MineGunnison, CONear Tin CupMSHA 0505107Gold OreUndergroundAbandonedStatus date: 10/01/2019Sweetwater Mining CorporationReported operatorTyler G LongReported controllerProduction / employmentView source coverage →
Aggregate Sand And Soil IncorporatedWeld, COMSHA 0504056Construction Sand and GravelSurfaceAbandonedStatus date: 01/30/1991Aggregate Sand & Soil IncReported operatorBartz RussellReported controllerNeither history importedView source coverage →
AIRPORT PIT #1Fremont, COMSHA 0503732Construction Sand and GravelSurfaceAbandonedStatus date: 09/29/1997R E Monks Construction CompanyReported operatorMonks Robert EReported controllerNeither history importedView source coverage →
Airport Pit #2Fremont, COMSHA 0503927Construction Sand and GravelSurfaceAbandonedStatus date: 09/08/1987R E Monks Construction CompanyReported operatorMonks Robert EReported controllerNeither history importedView source coverage →
Ajax MineTeller, COMSHA 0502266Gold OreUndergroundAbandonedStatus date: 12/02/1985Cripple Creek & Victor Gold Mining CompanyReported operatorPike'S Peak Mining Company & Golden Cycle Gold CorReported controllerNeither history importedView source coverage →
Alamosa PitAlamosa, COMSHA 0502984Construction Sand and GravelSurfaceAbandonedStatus date: 04/24/1979J & J Gravel CompanyReported operatorJ & J Gravel CompanyReported controllerNeither history importedView source coverage →
Albert Frei & Sons Pit #4Adams, CONear BrightonMSHA 0503659Construction Sand and GravelSurfaceAbandonedStatus date: 10/01/2015Albert Frei & Sons IncReported operatorAlbert R FreiReported controllerProduction / employmentSafety recordsView source coverage →
Albert Frei & Sons Pit #8Adams, CONear HendersonMSHA 0504483Crushed, Broken GraniteSurfaceAbandonedStatus date: 08/29/2011Albert Frei & Sons IncReported operatorAlbert R FreiReported controllerProduction / employmentSafety recordsView source coverage →
Alcott PitDelta, COMSHA 0503431Construction Sand and GravelSurfaceAbandonedStatus date: 02/14/1980Southway Const Co Inc & Asphalt Gravel Prod IncReported operatorEstate of Henry T. Southway Jr.Reported controllerNeither history importedView source coverage →
Alessi PitRoutt, COMSHA 0503420Construction Sand and GravelSurfaceAbandonedStatus date: 08/14/1985Sleeping Giant GravelReported operatorAlessi CarmenReported controllerNeither history importedView source coverage →
Alford PitEl Paso, COMSHA 0502973Construction Sand and GravelSurfaceAbandonedStatus date: 07/23/1979El Paso County Dept Of TransportationReported operatorEl Paso County-CoReported controllerNeither history importedView source coverage →
Alice No 2 Lc-Sr-IsSan Miguel, COMSHA 0503033Uranium OreUndergroundAbandonedStatus date: 05/18/1978Edward E MillerReported operatorEdward E MillerReported controllerNeither history importedView source coverage →
Allen Water CreekGarfield, COMSHA 0503521Construction Sand and GravelSurfaceAbandonedStatus date: 09/16/1982L A Young Sons Construction CompanyReported operatorYoung AlanReported controllerNeither history importedView source coverage →
Allied Dirt Moving Co Pit & PlantJefferson, COMSHA 0502030Construction Sand and GravelSurfaceAbandonedStatus date: 02/08/1980Allied Dirt Moving CompanyReported operatorAllied Dirt Moving CompanyReported controllerNeither history importedView source coverage →
ALLIED PORTABLE CRUSHINGWeld, CONear Fort CollinsMSHA 0504686Dimension Stone NECSurfaceAbandonedStatus date: 11/04/2002Allied Portable Crushing/RecyclingReported operatorBrt Holdings LLC; Aggregate IndustriesReported controllerProduction / employmentSafety recordsView source coverage →
ALLIED PORTABLE CRUSHINGLarimer, CONear Fort CollinsMSHA 0504703Construction Sand and GravelSurfaceAbandonedStatus date: 11/04/2002Allied Portable Crushing/RecyclingReported operatorBrt Holdings LLC; Aggregate IndustriesReported controllerProduction / employmentSafety recordsView source coverage →
All StarsMontrose, COMSHA 0502512Uranium OreUndergroundAbandonedStatus date: 03/06/1990Nelson Mining IncReported operatorNelson JoeReported controllerNeither history importedView source coverage →
Alma LincolnClear Creek, COMSHA 0504564Gold OreUndergroundAbandonedStatus date: 01/11/1996Lincoln Gold Mines IncReported operatorTim HartleyReported controllerNeither history importedView source coverage →
Alma PlacerPark, COMSHA 0502577Gold OreSurfaceAbandonedStatus date: 09/23/1982Timberline EnterprisesReported operatorReid Gordon P-Arnold W SpielmanReported controllerNeither history importedView source coverage →
ALMA PLANTPark, CONear AlmaMSHA 0504986Construction Sand and GravelSurfaceAbandonedStatus date: 12/23/2011WILLITS COMPANY, INC.Reported operatorRobert C WillitsReported controllerProduction / employmentSafety recordsView source coverage →
Alma Project MillPark, COMSHA 0503486Gold OreFacilityAbandonedStatus date: 07/14/1989London Mine VentureReported operatorCobb Resources Corp & Boulder Gold IncReported controllerNeither history importedView source coverage →
Alma Queen MinePark, COMSHA 0504086Gold OreUndergroundAbandonedStatus date: 03/24/1986Alma Queen MineReported operatorZvonkovich Joseph & Michael TrouskolReported 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.