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 |
|---|---|---|---|---|
| Myrin PitRoutt, COMSHA 0503493 | Construction Sand and GravelSurface | AbandonedStatus date: 08/13/1982 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| Mystic Eagle QuarryPitkin, CONear ASPENMSHA 0504553 | Crushed, Broken MarbleUnderground | AbandonedStatus date: 10/22/2019 | Mystic Eagle Group, LLCReported operatorMystic Eagle Quarry LLC; Mystic Eagle Investors LLCReported controller | Production / employmentSafety recordsView source coverage → |
| Nabob MineClear Creek, COMSHA 0503734 | Gold OreUnderground | AbandonedStatus date: 02/28/1983 | Gold Ridge Mining CompanyReported operatorHouston Mining & Resources IncReported controller | Neither history importedView source coverage → |
| Nancy CleoChaffee, COMSHA 0500737 | Gold OreUnderground | AbandonedStatus date: 04/23/1985 | Di Camillo Brothers Mining CompanyReported operatorDi Camillo Paul & JayReported controller | Neither history importedView source coverage → |
| Nancy CleoChaffee, COMSHA 0502943 | Gold OreSurface | AbandonedStatus date: 11/05/1976 | Stewart Mines IncReported operatorStewart Mines IncReported controller | Neither history importedView source coverage → |
| Nancy Haul TunnelBoulder, COMSHA 0503986 | Misc. Metal Ore NECUnderground | AbandonedStatus date: 07/03/1985 | The VentureReported operatorPine Creek MiningReported controller | Neither history importedView source coverage → |
| National MineGilpin, COMSHA 0503675 | Gold OreUnderground | AbandonedStatus date: 01/03/1985 | Central Gold CorpReported operatorDrown Arvey DReported controller | Neither history importedView source coverage → |
| National Park ServiceGunnison, COMSHA 0503363 | Construction Sand and GravelSurface | AbandonedStatus date: 08/13/1982 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| Nauta IiLarimer, COMSHA 0503145 | Construction Sand and GravelSurface | AbandonedStatus date: 05/20/1986 | NautaReported operatorNauta CharlesReported controller | Neither history importedView source coverage → |
| NeglectedLa Plata, COMSHA 0503867 | Gold OreUnderground | AbandonedStatus date: 07/08/1985 | Mine Development IncReported operatorMine Development IncReported controller | Neither history importedView source coverage → |
| NeillProwers, COMSHA 0503342 | Construction Sand and GravelSurface | AbandonedStatus date: 07/31/1979 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| Nellie Helen West Clay PitPueblo, COMSHA 0500193 | Common Clays NECSurface | AbandonedStatus date: 07/11/1983 | Colorado Fire Clay CoReported operatorColorado Fire Clay CoReported controller | Neither history importedView source coverage → |
| Nelson PitWeld, COMSHA 0503260 | Construction Sand and GravelSurface | AbandonedStatus date: 08/08/1995 | Western Paving Construction CompanyReported operatorRedland PlcReported controller | Neither history importedView source coverage → |
| Nepesta PitPueblo, COMSHA 0504157 | Construction Sand and GravelSurface | AbandonedStatus date: 04/21/1987 | Pueblo County Road & Bridge DepartmentReported operatorPueblo County - CoReported controller | Neither history importedView source coverage → |
| Nest Egg Ventures IncGunnison, COMSHA 0503082 | Silver OreUnderground | AbandonedStatus date: 08/11/1977 | Nest Egg Ventures IncReported operatorNest Egg Ventures IncReported controller | Neither history importedView source coverage → |
| Nevada MineSaguache, COMSHA 0503583 | Gold OreUnderground | AbandonedStatus date: 07/05/1985 | Laura Frances RileyReported operatorRiley Laura FrancesReported controller | Neither history importedView source coverage → |
| New Annex #2 StripFremont, COMSHA 0500241 | Coal (Bituminous)Surface | AbandonedStatus date: 05/01/1973 | Nickie Rocchio OperatorReported operatorRocchio NickieReported controller | Neither history importedView source coverage → |
| New CastleGarfield, COMSHA 0503606 | Coal (Bituminous)Surface | AbandonedStatus date: 04/15/1981 | Mountain States Machinery & Supply IncReported operatorHarmond George MReported controller | Neither history importedView source coverage → |
| New Elk MineLas Animas, CONear WestonMSHA 0500296 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 01/14/2017 | New Elk Coal Company LLCReported operatorAllegiance Coal LTDReported controller | Production / employmentSafety recordsView source coverage → |
| New Elk Prep PlantLas Animas, CONear StonewallMSHA 0504461 | Coal (Bituminous)Facility | Abandoned and SealedStatus date: 04/01/2023 | New Elk Coal Company LLCReported operatorAllegiance Coal LTDReported controller | Production / employmentSafety recordsView source coverage → |
| Newett QuarryChaffee, CONear Buena VistaMSHA 0505210 | Dimension LimestoneSurface | AbandonedStatus date: 10/23/2026 | Pete Lien & Sons, Inc. Reported operatorPete Lien & Sons IncReported controller | Safety recordsView source coverage → |
| New Horizon MineMontrose, CONear NuclaMSHA 0500299 | Coal (Bituminous)Surface | AbandonedStatus date: 01/24/2019 | Elk Ridge Mining and Reclamation LLCReported operatorTri-State Generation and Transmission Assn IncReported controller | Production / employmentSafety recordsView source coverage → |
| Newlin CreekFremont, CONear FlorenceMSHA 0503023 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 12/01/1983 | Harrison-PeltronReported operatorHarrison Western Corp & Peltron Resources IncReported controller | Neither history importedView source coverage → |
| NewmontTeller, CONear Elizabeth, COMSHA 0505146 | Coal (Anthracite)Surface | AbandonedStatus date: 04/16/2024 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| New VerdeMesa, COMSHA 0500916 | Uranium OreUnderground | AbandonedStatus date: 07/11/1983 | Energy Fuels ResourcesReported operatorEnergy Fuels IncorporatedReported controller | Neither history importedView source coverage → |
| New York MineSummit, COMSHA 0503655 | Lead-Zinc OreUnderground | AbandonedStatus date: 06/24/1982 | Marquette Minerals IncReported operatorHeon Raymond PReported controller | Neither history importedView source coverage → |
| NICHOLS PITMesa, COMSHA 0504657 | Construction Sand and GravelSurface | AbandonedStatus date: 03/04/2002 | Mk Sand & Gravel IncReported operatorMelvin WeaverReported controller | Production / employmentSafety recordsView source coverage → |
| NilMontrose, COMSHA 0501658 | Uranium-Vanadium OreUnderground | AbandonedStatus date: 12/07/1990 | B-Mining CompanyReported operatorMoore MichaelReported controller | Neither history importedView source coverage → |
| Noble PitOuray, COMSHA 0503172 | Construction Sand and GravelSurface | AbandonedStatus date: 03/26/1979 | Mountain Gravel & Construction CompanyReported operatorRichard TibbitsReported controller | Neither history importedView source coverage → |
| Noland QuarriesBoulder, COMSHA 0504242 | Dimension SandstoneSurface | AbandonedStatus date: 10/31/1988 | Rocky Mountain RockReported operatorRocky Mountain RockReported 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.