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 |
|---|---|---|---|---|
| Mineral Channel No 12Mesa, COMSHA 0502994 | Uranium OreUnderground | AbandonedStatus date: 01/10/1980 | Moores Mining & RanchingReported operatorMoores Jean-Craig & LeonReported controller | Neither history importedView source coverage → |
| Mineral Hill MineGunnison, COMSHA 0503990 | Gold OreSurface | AbandonedStatus date: 07/15/1987 | Colorado Gold MinesReported operatorRhodes William EReported controller | Neither history importedView source coverage → |
| Mineral Joe #2Montrose, COMSHA 0500914 | Uranium OreUnderground | AbandonedStatus date: 07/12/1984 | Phil Bunker Mining CompanyReported operatorBunker PhilReported controller | Neither history importedView source coverage → |
| MinnehahaSan Juan, COMSHA 0503685 | Gold OreUnderground | AbandonedStatus date: 07/22/1982 | Durango Gold Company IncReported operatorLuzar Harold E SrReported controller | Neither history importedView source coverage → |
| MJRLarimer, COMSHA 0504669 | Construction Sand and GravelSurface | AbandonedStatus date: 02/27/2001 | Mjr LcReported operatorJames R GallensteinReported controller | Production / employmentSafety recordsView source coverage → |
| MobileLarimer, CONear LyonsMSHA 0504470 | Dimension SandstoneSurface | AbandonedStatus date: 04/12/2021 | Rubble IncReported operatorCarmen A RinaldisReported controller | Production / employmentSafety recordsView source coverage → |
| Mobil Experimental MineGarfield, COMSHA 0503603 | Oil ShaleUnderground | AbandonedStatus date: 10/09/1981 | Mobil Oil CorpReported operatorMobil CorpReported controller | Neither history importedView source coverage → |
| Mobil Mine 2Kit Carson, CONear MilfordMSHA 4202784 | Construction Sand and GravelSurface | AbandonedStatus date: 09/11/2026 | Rollins Construction and Trucking LLCReported operatorAmber Dawn Rollins; Richard Kelly RollinsReported controller | Production / employmentSafety recordsView source coverage → |
| Moffat LimestoneMoffat, CONear MaybellMSHA 0505113 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 04/16/2020 | Moffat Limestone CompanyReported operatorMike T AnsonReported controller | Production / employmentSafety recordsView source coverage → |
| MOFFAT TUNNELTeller, COMSHA 0503299 | Gold OreUnderground | AbandonedStatus date: 04/28/1992 | Yellow Gold Of Cripple Creek IncReported operatorDager Charles AReported controller | Safety recordsView source coverage → |
| Moffat Tunnel PitTeller, COMSHA 0503826 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 01/08/1987 | Rocky Mountain Materials IncReported operatorStephen SchnurrReported controller | Neither history importedView source coverage → |
| MOGUL MINEBoulder, COMSHA 0504508 | Gold OreUnderground | AbandonedStatus date: 12/16/1997 | Gems & Minerals CorpReported operatorFranklin Consolidated Mng Co Inc & Island InvestmeReported controller | Neither history importedView source coverage → |
| Monarch MillChaffee, CONear SalidaMSHA 0504799 | Crushed, Broken MarbleSurface | AbandonedStatus date: 10/01/2015 | QUIKRETE COMPANIESReported operatorQuikrete Holdings Inc.Reported controller | Production / employmentSafety recordsView source coverage → |
| MONKS PITLincoln, COMSHA 0504506 | Construction Sand and GravelSurface | AbandonedStatus date: 08/25/1999 | Homer Monks Construction IncReported operatorMonks Jack DReported controller | Production / employmentView source coverage → |
| Monks pitElbert, CONear LimonMSHA 0504803 | Construction Sand and GravelSurface | AbandonedStatus date: 07/28/2005 | Town of LimonReported operatorTown of LimonReported controller | Production / employmentSafety recordsView source coverage → |
| Monogram #12Montrose, COMSHA 0503852 | Uranium OreUnderground | AbandonedStatus date: 08/12/1983 | Sage & Sage MiningReported operatorSage Jack AReported controller | Neither history importedView source coverage → |
| Monogram MineMontrose, COMSHA 0502340 | Uranium OreUnderground | AbandonedStatus date: 11/15/1982 | Nuvemco LLCReported operatorEMSU LLCReported controller | Neither history importedView source coverage → |
| Monogram Open Pit MineMontrose, CONear NaturitaMSHA 0504928 | Uranium OreSurface | AbandonedStatus date: 04/20/2009 | Nuvemco LLCReported operatorEMSU LLCReported controller | Production / employmentView source coverage → |
| Monroe PitLarimer, CONear Red FeatherMSHA 0504768 | Construction Sand and GravelSurface | AbandonedStatus date: 08/16/2005 | Monroe Excavating IncorporatedReported operatorMarion C MonroeReported controller | Production / employmentSafety recordsView source coverage → |
| Monte CarloGunnison, COMSHA 0503966 | Gold OreUnderground | AbandonedStatus date: 03/21/1986 | Atlas Precious Metals IncReported operatorAtlas CorpReported controller | Neither history importedView source coverage → |
| Monte Cristo MinePark, COMSHA 0503294 | Construction Sand and GravelSurface | AbandonedStatus date: 07/31/1979 | Monte Cristo Mining & Milling CompanyReported operatorMonte Cristo Mining & Milling CompanyReported controller | Neither history importedView source coverage → |
| Montez PitHuerfano, COMSHA 0503944 | Construction Sand and GravelSurface | AbandonedStatus date: 05/07/1986 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| MONTGOMERY PITEagle, COMSHA 0504432 | Construction Sand and GravelSurface | AbandonedStatus date: 10/10/2000 | B & B Excavating IncReported operatorCRH PLCReported controller | Production / employmentSafety recordsView source coverage → |
| Montrose Concrete ProductsMontrose, COMSHA 0501008 | Construction Sand and GravelSurface | AbandonedStatus date: 09/15/1988 | Montrose Concrete Products CompanyReported operatorMontrose Concrete Products CompanyReported controller | Neither history importedView source coverage → |
| MONTROSE COUNTY CRUSHERMontrose, COMSHA 0504606 | Construction Sand and GravelSurface | AbandonedStatus date: 12/12/2000 | Montrose County Road & BridgeReported operatorMontrose County-CoReported controller | Production / employmentView source coverage → |
| MONUMENT ROCKRio Blanco, COMSHA 0504705 | Dimension SandstoneSurface | AbandonedStatus date: 06/27/2002 | Monument RockReported operatorRoss Wheeler; Tim DoleReported controller | Production / employmentSafety recordsView source coverage → |
| Moose MinePark, COMSHA 0503594 | Silver OreUnderground | AbandonedStatus date: 09/23/1982 | Dorado Mining Company IncReported operatorA W WadsworthReported controller | Neither history importedView source coverage → |
| Moose MineGilpin, COMSHA 0503706 | Silver OreUnderground | AbandonedStatus date: 05/19/1982 | Gold Ridge Mining CompanyReported operatorHouston Mining & Resources IncReported controller | Neither history importedView source coverage → |
| Morgan County PitMorgan, COMSHA 0502939 | Construction Sand and GravelSurface | AbandonedStatus date: 09/20/1979 | Morgan County HighwayReported operatorMorgan County - CoReported controller | Neither history importedView source coverage → |
| Morning Star MinePark, COMSHA 0503487 | Gold OreSurface | AbandonedStatus date: 07/03/1985 | Dorado Mining Company IncReported operatorA W WadsworthReported controller | Neither history importedView 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.