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
Polonia Mine & MillCuster, COMSHA 0503897Silver OreFacilityAbandonedStatus date: 05/06/1985Polonia Mining CompanyReported operatorPolonia Mining CompanyReported controllerNeither history importedView source coverage →
Pompeii MineTeller, COMSHA 0503568Gold OreUndergroundAbandonedStatus date: 04/29/1985Cripple Creek Gold ReserveReported operatorMc Clure Walter EReported controllerNeither history importedView source coverage →
Pond MineSan Miguel, COMSHA 0503086Uranium OreUndergroundAbandonedStatus date: 06/17/1981Switzler Mining CoReported operatorSwitzler Mining CoReported controllerNeither history importedView source coverage →
Poorman MineClear Creek, COMSHA 0503617Gold OreUndergroundAbandonedStatus date: 07/03/1985Mosch Exploration & Mining CompanyReported operatorMosch AlvinReported controllerNeither history importedView source coverage →
Portable #1Boulder, COMSHA 0504112Construction Sand and GravelSurfaceAbandonedStatus date: 04/10/1987Golden Gravel CompanyReported operatorStewart V GoldenReported controllerNeither history importedView source coverage →
PORTABLE #1Pueblo, CONear PuebloMSHA 0504374Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/2006Alpine Aggregate IncReported operatorRockford RyanReported controllerProduction / employmentSafety recordsView source coverage →
Portable #1Logan, CONear SterlingMSHA 0504778Construction Sand and GravelSurfaceAbandonedStatus date: 10/01/2007The State of Colorado DOC Heavy Equipment TechReported operatorState Of ColoradoReported controllerProduction / employmentView source coverage →
Portable 1Routt, CONear CraigMSHA 0505002Construction Sand and GravelSurfaceAbandonedStatus date: 09/27/2012X Field Services LLCReported operatorKatie M Haskins; Jake HaskinsReported controllerProduction / employmentSafety recordsView source coverage →
Portable 1Montrose, CONear MONTROSEMSHA 0505147Construction Sand and GravelSurfaceAbandonedStatus date: 08/11/2022Western Gravel, Inc.Reported operatorJudy DeVincentisReported controllerProduction / employmentSafety recordsView source coverage →
Portable Conveyor Plant P11-6601Arapahoe, COMSHA 0504278Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6602Alamosa, COMSHA 0503336Construction Sand and GravelSurfaceAbandonedStatus date: 09/07/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6603Denver, COMSHA 0504287Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6607La Plata, COMSHA 0504327Construction Sand and GravelSurfaceAbandonedStatus date: 07/26/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6608Arapahoe, COMSHA 0504270Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6609Denver, COMSHA 0504277Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6610Pueblo, COMSHA 0504292Construction Sand and GravelSurfaceAbandonedStatus date: 09/07/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6611Pueblo, COMSHA 0503408Construction Sand and GravelSurfaceAbandonedStatus date: 07/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6616Mesa, COMSHA 0504300Construction Sand and GravelSurfaceAbandonedStatus date: 08/01/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6619Huerfano, COMSHA 0504323Construction Sand and GravelSurfaceAbandonedStatus date: 09/07/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6623Alamosa, COMSHA 0504325Construction Sand and GravelSurfaceAbandonedStatus date: 09/07/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6628Rio Grande, COMSHA 0504316Construction Sand and GravelSurfaceAbandonedStatus date: 09/07/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6629Denver, COMSHA 0504265Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6631Pueblo, COMSHA 0504293Construction Sand and GravelSurfaceAbandonedStatus date: 09/07/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6632Denver, COMSHA 0504266Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6633La Plata, COMSHA 0504321Construction Sand and GravelSurfaceAbandonedStatus date: 08/01/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6634Denver, COMSHA 0504267Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6635Denver, COMSHA 0504268Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Portable Conveyor Plant P11-6636Denver, COMSHA 0504269Construction Sand and GravelSurfaceAbandonedStatus date: 01/31/1989Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
PORTABLE CRSHING PLT 03Alamosa, COMSHA 0503305Construction Sand and GravelSurfaceAbandonedStatus date: 09/24/2001Southway Construction Company IncReported operatorEstate of Henry T. Southway Jr.Reported controllerProduction / employmentSafety recordsView source coverage →
Portable CrusherHuerfano, COMSHA 0501009Construction Sand and GravelSurfaceAbandonedStatus date: 09/12/1990Pfaffenhauser ConstructionReported operatorPfaffenhauser RaymondReported 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.