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 |
|---|---|---|---|---|
| Cyprus Orchard ValleyDelta, CONear PaoniaMSHA 0502898 | Coal (Bituminous)Underground | AbandonedStatus date: 06/16/1993 | Cyprus Orchard Valley Coal CorpReported operatorCyprus Amax Minerals CompanyReported controller | Neither history importedView source coverage → |
| Dahlia PlantAdams, COMSHA 0504487 | Construction Sand and GravelSurface | AbandonedStatus date: 02/18/1994 | Cooley Gravel CompanyReported operatorEnglish China Clays PLCReported controller | Neither history importedView source coverage → |
| DakotaJefferson, COMSHA 0504421 | Fire ClaySurface | AbandonedStatus date: 03/01/1991 | Denver Brick CompanyReported operatorJaqueline SimkinReported controller | Neither history importedView source coverage → |
| Dallas Creek ProjectOuray, COMSHA 0503545 | Construction Sand and GravelSurface | AbandonedStatus date: 10/10/1986 | Granite Construction CompanyReported operatorGranite Construction IncReported controller | Neither history importedView source coverage → |
| Dallas Divide PitOuray, COMSHA 0503175 | Construction Sand and GravelSurface | AbandonedStatus date: 06/13/1979 | C E Mills Construction Company IncReported operatorC E MillsReported controller | Neither history importedView source coverage → |
| Dalrymple Placer MineSan Miguel, COMSHA 0503717 | Gold OreSurface | AbandonedStatus date: 08/22/1982 | Dalrymple Placer MiningReported operatorDalrymple Daniel PReported controller | Neither history importedView source coverage → |
| Davis PitEl Paso, COMSHA 0503273 | Construction Sand and GravelSurface | AbandonedStatus date: 07/24/1979 | El Paso County Dept Of TransportationReported operatorEl Paso County-CoReported controller | Neither history importedView source coverage → |
| DawsonElbert, COMSHA 0501850 | Common Clays NECSurface | AbandonedStatus date: 03/01/1991 | Denver Brick CompanyReported operatorJaqueline SimkinReported controller | Neither history importedView source coverage → |
| Day PitArchuleta, COMSHA 0503421 | Construction Sand and GravelSurface | AbandonedStatus date: 01/07/1983 | Burnett Construction CompanyReported operatorSiegrist Construction CompanyReported controller | Neither history importedView source coverage → |
| Day PitArchuleta, COMSHA 0504247 | Construction Sand and GravelSurface | AbandonedStatus date: 09/23/1987 | DayrocReported operatorDay PaulReported controller | Neither history importedView source coverage → |
| DddElbert, COMSHA 0504164 | Fire ClaySurface | AbandonedStatus date: 04/01/1991 | Robinson Brick CompanyReported operatorF George Robinson JrReported controller | Neither history importedView source coverage → |
| Dearman PitRio Blanco, COMSHA 0503239 | Construction Sand and GravelSurface | AbandonedStatus date: 02/20/1979 | Nielsons IncReported operatorAshland IncReported controller | Neither history importedView source coverage → |
| Debetz PitAdams, COMSHA 0503045 | Construction Sand and GravelSurface | AbandonedStatus date: 08/12/1982 | Adams County Highway Department/Public WorksReported operatorAdams County-CoReported controller | Neither history importedView source coverage → |
| DEBETZ PITAdams, COMSHA 0504215 | Construction Sand and GravelSurface | AbandonedStatus date: 11/08/2000 | Adams County-Public WorksReported operatorAdams County-CoReported controller | Production / employmentSafety recordsView source coverage → |
| Deep Creek PlacerSan Miguel, COMSHA 0504176 | Crushed, Broken Limestone NECUnderground | AbandonedStatus date: 02/27/1995 | B-Mining CompanyReported operatorMoore MichaelReported controller | Neither history importedView source coverage → |
| DEEPE FARM PITBoulder, COMSHA 0503532 | Construction Sand and GravelSurface | AbandonedStatus date: 11/12/1996 | Western Mobile Boulder IncReported operatorRedland PlcReported controller | Neither history importedView source coverage → |
| Deer Creek PitJefferson, COMSHA 0503079 | Construction Sand and GravelSurface | AbandonedStatus date: 03/26/1981 | Peter Kiewit Sons' CompanyReported operatorPeter Kiewit Sons' IncReported controller | Neither history importedView source coverage → |
| Deer Creek PlantJefferson, CONear LakewoodMSHA 0502554 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 01/19/2006 | Aggregate Industries WRC IncReported operatorAmrize LtdReported controller | Production / employmentSafety recordsView source coverage → |
| Deere PitGarfield, COMSHA 0503705 | Construction Sand and GravelSurface | AbandonedStatus date: 05/30/1985 | Corn Construction CompanyReported operatorLarry W CornReported controller | Neither history importedView source coverage → |
| DEER TRAIL GRAVEL PITArapahoe, CONear DeertrailMSHA 0504607 | Construction Sand and GravelSurface | AbandonedStatus date: 09/23/2003 | T & W Construction IncReported operatorWayne PipkinReported controller | Production / employmentSafety recordsView source coverage → |
| Deer Trail Sand & GravelArapahoe, COMSHA 0503854 | Construction Sand and GravelSurface | AbandonedStatus date: 03/19/1986 | Deer Trail Sand & GravelReported operatorRector BerylReported controller | Neither history importedView source coverage → |
| Delacross PitEl Paso, COMSHA 0502960 | Construction Sand and GravelSurface | AbandonedStatus date: 07/24/1979 | Rays DigginsReported operatorRays DigginsReported controller | Neither history importedView source coverage → |
| Del Camino PitWeld, COMSHA 0503627 | Construction Sand and GravelSurface | AbandonedStatus date: 07/13/1992 | Western Paving Construction CompanyReported operatorRedland PlcReported controller | Neither history importedView source coverage → |
| Del Camino Sand & Gravel MineWeld, CONear PlattevilleMSHA 0504769 | Construction Sand and GravelSurface | AbandonedStatus date: 02/22/2005 | Ready Mixed Concrete CompanyReported operatorJames C Marvel JrReported controller | Production / employmentSafety recordsView source coverage → |
| Delta Coal CrushersDelta, COMSHA 0503650 | Coal (Bituminous)Facility | AbandonedStatus date: 07/15/1981 | Delta Coal CrushersReported operatorTaft ArnoldReported controller | Neither history importedView source coverage → |
| Delta County District #4 Wash PlantDelta, CONear DeltaMSHA 0504743 | Construction Sand and GravelSurface | AbandonedStatus date: 03/15/2005 | Delta County CommissionersReported operatorDelta County-CoReported controller | Production / employmentSafety recordsView source coverage → |
| Delta County Or Delta County PitDelta, COMSHA 0503470 | Construction Sand and GravelSurface | AbandonedStatus date: 08/13/1982 | Delta CountyReported operatorDelta County-CoReported controller | Neither history importedView source coverage → |
| Delta Portable Crushing Plant #1Delta, COMSHA 0504073 | Construction Sand and GravelSurface | AbandonedStatus date: 07/01/1986 | Delta Sand & Gravel CompanyReported operatorThelma B StarnerReported controller | Neither history importedView source coverage → |
| Delta Sand And Gravel Pit 3Delta, COMSHA 0503055 | Construction Sand and GravelSurface | AbandonedStatus date: 07/24/1979 | Russ Serviss MiningReported operatorRuss Serviss MiningReported controller | Neither history importedView source coverage → |
| Delta Wash Plant El Paso, CONear Colorado SpringsMSHA 0501035 | Construction Sand and GravelSurface | AbandonedStatus date: 03/06/2025 | Schmidt AggregatesReported operatorEdward C Levy JrReported controller | Production / employmentSafety recordsView 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.