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

Browse all states →

Reset

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
Stringtown MillLake, COMSHA 0502267Gold OreFacilityAbandonedStatus date: 06/24/1990Leadville CorpReported operatorRisk RobertReported controllerNeither history importedView source coverage →
StrohElbert, COMSHA 0503316Construction Sand and GravelSurfaceAbandonedStatus date: 08/27/1979Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
Stroh Gravel MineWeld, COMSHA 0504227Construction Sand and GravelSurfaceAbandonedStatus date: 08/01/1990John StrohReported operatorStroh JohnReported controllerNeither history importedView source coverage →
StromquistWeld, COMSHA 0503933Construction Sand and GravelSurfaceAbandonedStatus date: 09/05/1991Western Mobile IncReported operatorRedland PlcReported controllerNeither history importedView source coverage →
Strong MineTeller, COMSHA 0502392Gold OreUndergroundAbandonedStatus date: 05/05/1986Mineral EnterprisesReported operatorMineral EnterprisesReported controllerNeither history importedView source coverage →
Strong PitAdams, COMSHA 0503094Construction Sand and GravelSurfaceAbandonedStatus date: 10/29/1979Strong Bros Excavating IncReported operatorStrong Bros Excavating IncReported controllerNeither history importedView source coverage →
Stump MineBoulder, COMSHA 0502230Silver OreUndergroundAbandonedStatus date: 05/04/1981Wayne WilliamsReported operatorWayne WilliamsReported controllerNeither history importedView source coverage →
Sultan Mountain MillSan Juan, COMSHA 0503726Silver OreFacilityAbandonedStatus date: 10/31/1990Sultan Mountain MineReported operatorP & G Mining Inc & InarReported controllerNeither history importedView source coverage →
Sultan Mountain MineSan Juan, COMSHA 0503740Gold OreUndergroundAbandonedStatus date: 01/27/1989Sultan Mountain MineReported operatorP & G Mining Inc & InarReported controllerNeither history importedView source coverage →
Summit-Black JackSan Miguel, COMSHA 0503546Uranium-Vanadium OreUndergroundAbandonedStatus date: 03/29/1990Jim C ButtReported operatorButt Jim CReported controllerNeither history importedView source coverage →
SUMMIT CLAY PITSPueblo, COMSHA 0503926Common Clays NECSurfaceAbandonedStatus date: 09/14/2001Summit Pressed Brick & Tile CompanyReported operatorJoseph C WelteReported controllerProduction / employmentSafety recordsView source coverage →
SUMMIT CLAY PITS - L.C.I. Inc.Fremont, CONear PenroseMSHA 0504710Fire ClaySurfaceAbandonedStatus date: 08/31/2018L.C.I.Reported operatorMichael Jon VandenburgReported controllerProduction / employmentSafety recordsView source coverage →
Summit Pressed Brick PuebloPueblo, COMSHA 0500309Fire ClayFacilityAbandonedStatus date: 05/21/1982Summit Pressed Brick & Tile CompanyReported operatorJoseph C WelteReported controllerNeither history importedView source coverage →
Summit Pressed Brick & Tile MillLas Animas, COMSHA 0502756Fire ClayFacilityAbandonedStatus date: 05/21/1982Summit Pressed Brick & Tile CompanyReported operatorJoseph C WelteReported controllerNeither history importedView source coverage →
Summitville MineRio Grande, COMSHA 0503684Gold OreSurfaceAbandonedStatus date: 12/03/1984Summitville Consolidated Mining Company IncReported operatorGalactic Resources LtdReported controllerNeither history importedView source coverage →
Summitville MineRio Grande, COMSHA 0503998Gold OreSurfaceAbandonedStatus date: 05/13/1993Summitville Consolidated Mining Company IncReported operatorGalactic Resources LtdReported controllerNeither history importedView source coverage →
SunbeamMontrose, COMSHA 0501065Uranium-Vanadium OreUndergroundAbandonedStatus date: 12/02/1988Blue Rock Energy CorpReported operatorBlue Rock Resources LtdReported controllerNeither history importedView source coverage →
Sun CupSan Miguel, COMSHA 0501679Uranium-Vanadium OreUndergroundAbandonedStatus date: 04/23/1985Minerals Recovery CorpReported operatorNewman EricReported controllerNeither history importedView source coverage →
Sun Dog MineClear Creek, COMSHA 0502935Silver OreUndergroundAbandonedStatus date: 07/03/1985Sun Dog Mining CompanyReported operatorSun Dog Mining CompanyReported controllerNeither history importedView source coverage →
SunlightGarfield, CONear Glenwood SpringsMSHA 0500256Coal (Bituminous)UndergroundAbandoned and SealedStatus date: 09/30/1982Black Rock Mining Company IncReported operatorEnergy Capital Development CorpReported controllerNeither history importedView source coverage →
Sunlight RefuseGarfield, CONear Glenwood SpringsMSHA 0503636Coal (Bituminous)FacilityAbandonedStatus date: 08/01/1981Mountain States Machinery & Supply IncReported operatorHarmond George MReported controllerNeither history importedView source coverage →
Sun MineRoutt, CONear Steamboat SpringsMSHA 0502659Coal (Bituminous)UndergroundAbandoned and SealedStatus date: 05/01/1984Ruby Construction Company IncReported operatorField Jim MReported controllerNeither history importedView source coverage →
Sunnyside Mine/Mayflower MillSan Juan, COMSHA 0500417Gold OreUndergroundAbandonedStatus date: 09/15/1993Sunnyside Gold CorpReported operatorEcho Bay Mines LtdReported controllerNeither history importedView source coverage →
Sunnyside PitLa Plata, COMSHA 0504249Construction Sand and GravelSurfaceAbandonedStatus date: 09/23/1991Sunnyside Gravel & ExcavationReported operatorHess AltonReported controllerNeither history importedView source coverage →
Sunrise No 5Montrose, COMSHA 0503424Uranium-Vanadium OreUndergroundAbandonedStatus date: 09/13/1979Summit Canyon Resources IncReported operatorSummit Canyon Resources IncReported controllerNeither history importedView source coverage →
Sunspot MineMesa, COMSHA 0501628Uranium OreUndergroundAbandonedStatus date: 02/02/1981Taminco IncReported operatorTaylor RobertReported controllerNeither history importedView source coverage →
Sutton RanchLincoln, COMSHA 0503324Construction Sand and GravelSurfaceAbandonedStatus date: 08/27/1979Colorado Department Of HighwaysReported operatorState Of ColoradoReported controllerNeither history importedView source coverage →
SwartzLarimer, COMSHA 0501997Construction Sand and GravelSurfaceAbandonedStatus date: 05/09/1988Flatiron Paving CompanyReported operatorFlatiron Paving CompanyReported controllerNeither history importedView source coverage →
SWEETHOMEPark, CONear GoldenMSHA 0503062GemstonesUndergroundAbandonedStatus date: 11/01/2004Colorado Calumet Company IncReported operatorBryan K LeesReported controllerProduction / employmentSafety recordsView source coverage →
SylvaniteGunnison, COMSHA 0503987Silver OreUndergroundAbandonedStatus date: 03/21/1986B & J CrushingReported operatorMelvin R GydesenReported 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.