| San Juan Overlook CrushingArchuleta, COMSHA 0503565 | Construction Sand and GravelSurface | AbandonedStatus date: 07/29/1980 | Southway Const Co Inc & Asphalt Gravel Prod IncReported operatorEstate of Henry T. Southway Jr.Reported controller | Neither history importedView source coverage → |
| SAN LUIS MINECostilla, COMSHA 0504346 | Gold OreSurface | AbandonedStatus date: 01/10/1997 | Battle Mountain Gold CompanyReported operatorBattle Mountain Gold CompanyReported controller | Neither history importedView source coverage → |
| San Miguel County PlacerSan Miguel, COMSHA 0503108 | Construction Sand and GravelSurface | AbandonedStatus date: 04/23/1985 | Skelton IncReported operatorSkelton Lothan DwayneReported controller | Neither history importedView source coverage → |
| Santa Fe MineClear Creek, COMSHA 0502307 | Gold OreUnderground | AbandonedStatus date: 01/28/1977 | Silver King Mining CompanyReported operatorSilver King Mining CompanyReported controller | Neither history importedView source coverage → |
| SantiagoClear Creek, COMSHA 0503954 | Gold OreUnderground | AbandonedStatus date: 06/30/1986 | Hilgers IncReported operatorStephen E HilgersReported controller | Neither history importedView source coverage → |
| SapphireMesa, COMSHA 0503607 | Uranium-Vanadium OreUnderground | AbandonedStatus date: 01/13/1983 | Energy Fuels ResourcesReported operatorEnergy Fuels IncorporatedReported controller | Neither history importedView source coverage → |
| Sara Rose MinePark, CONear AlmaMSHA 0505090 | GemstonesUnderground | AbandonedStatus date: 07/27/2026 | Red Rock Exploration LLCReported operatorMichael BergmannReported controller | Production / employmentSafety recordsView source coverage → |
| Saratoga Leach SiteGilpin, COMSHA 0503879 | Gold OreFacility | AbandonedStatus date: 05/21/1986 | Saratoga Mines IncReported operatorLarson Arden L--C E CarlsonReported controller | Neither history importedView source coverage → |
| Sargents PitSaguache, COMSHA 0503586 | Construction Sand and GravelSurface | AbandonedStatus date: 08/13/1982 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| SawpitSan Miguel, COMSHA 0503775 | Gold OreUnderground | AbandonedStatus date: 03/23/1984 | Intermountain Mining LtdReported operatorBerg Randall WReported controller | Neither history importedView source coverage → |
| Schaffert PitWashington, CONear DenverMSHA 0504272 | Construction Sand and GravelType not reported | AbandonedStatus date: 10/16/1987 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| SchenkWashington, COMSHA 0503438 | Construction Sand and GravelSurface | AbandonedStatus date: 01/04/1980 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| Schlosser Wash PlantKit Carson, CONear BurlingtonMSHA 0503071 | Construction Sand and GravelSurface | AbandonedStatus date: 04/07/2008 | Schlosser IncReported operatorGary L Schlosser; Tom D SchlosserReported controller | Production / employmentSafety recordsView source coverage → |
| Schlosser White ScreenKit Carson, CONear BurlingtonMSHA 0504896 | Construction Sand and GravelSurface | AbandonedStatus date: 09/08/2008 | Schlosser IncReported operatorGary L Schlosser; Tom D SchlosserReported controller | Production / employmentSafety recordsView source coverage → |
| Schmidt PitEagle, COMSHA 0504031 | Construction Sand and GravelSurface | AbandonedStatus date: 08/22/1985 | Nottingham Sand & GravelReported operatorNottingham Randy & StevenReported controller | Neither history importedView source coverage → |
| Schmitt ReddimixAdams, CONear ByersMSHA 0504233 | Construction Sand and GravelSurface | AbandonedStatus date: 08/29/2013 | Schmitt ReddimixReported operatorBlaine SchmittReported controller | Production / employmentSafety recordsView source coverage → |
| Schoenecker PitWashington, COMSHA 0502920 | Construction Sand and GravelSurface | AbandonedStatus date: 01/02/1979 | Colorado Department Of HighwaysReported operatorState Of ColoradoReported controller | Neither history importedView source coverage → |
| School Section MineTeller, COMSHA 0503559 | Gold OreUnderground | AbandonedStatus date: 07/23/1984 | Katinka Mining CorpReported operatorKatinka Mining CorpReported controller | Neither history importedView source coverage → |
| SchuremanLarimer, COMSHA 0501952 | Construction Sand and GravelSurface | AbandonedStatus date: 05/09/1979 | Sterling Sand & Gravel CompanyReported operatorKoppers Company IncReported controller | Neither history importedView source coverage → |
| SCHWARTZWALDERJefferson, CONear DenverMSHA 0500791 | Uranium-Vanadium OreUnderground | AbandonedStatus date: 12/01/2007 | Cotter CorpReported operatorGeneral Atomics Uranium ResourcesReported controller | Production / employmentSafety recordsView source coverage → |
| SCI-001Rio Blanco, CONear MeekerMSHA 0505114 | Construction Sand and GravelSurface | AbandonedStatus date: 02/28/2022 | Scott Contracting, Inc.Reported operatorCCI (Clyde Companies Inc)Reported controller | Production / employmentSafety recordsView source coverage → |
| Scott PitLa Plata, CONear DurangoMSHA 0504484 | Construction Sand and GravelSurface | AbandonedStatus date: 08/02/2013 | United CompaniesReported operatorCRH PLCReported controller | Production / employmentSafety recordsView source coverage → |
| ScreenerLarimer, COMSHA 0502877 | Construction Sand and GravelSurface | AbandonedStatus date: 09/08/1989 | Larimer County Road & Bridge DepartmentReported operatorLarimer County-CoReported controller | Neither history importedView source coverage → |
| SCREENING OPERATIONPueblo, COMSHA 0504505 | Construction Sand and GravelSurface | AbandonedStatus date: 03/15/2001 | Rbk Construction IncReported operatorRonda NeumeisterReported controller | Production / employmentView source coverage → |
| Screening Operation #1Prowers, CONear LamarMSHA 0504343 | Construction Sand and GravelSurface | AbandonedStatus date: 10/01/2014 | Carder IncReported operatorRon D PetersonReported controller | Production / employmentSafety recordsView source coverage → |
| Screening Operation #2Prowers, CONear LamarMSHA 0504117 | Construction Sand and GravelSurface | AbandonedStatus date: 06/01/2015 | Carder IncReported operatorRon D PetersonReported controller | Production / employmentSafety recordsView source coverage → |
| Screening Operation #4Prowers, CONear LamarMSHA 0504538 | Construction Sand and GravelSurface | AbandonedStatus date: 07/30/2012 | Carder IncReported operatorRon D PetersonReported controller | Production / employmentSafety recordsView source coverage → |
| Screening Operation #5Prowers, CONear DenverMSHA 0504612 | Construction Sand and GravelSurface | AbandonedStatus date: 07/13/2009 | Carder IncReported operatorRon D PetersonReported controller | Production / employmentSafety recordsView source coverage → |
| Screening PlantCuster, CONear WestcliffeMSHA 0504668 | Construction Sand and GravelSurface | AbandonedStatus date: 05/01/2011 | Custer County Road & BridgeReported operatorCuster County-COReported controller | Production / employmentSafety recordsView source coverage → |
| SCREENING PLANTPueblo, CONear RyeMSHA 0504683 | Construction Sand and GravelSurface | AbandonedStatus date: 07/22/2005 | Kirkland Construction LLLPReported operatorJames H KirklandReported controller | Production / employmentSafety recordsView source coverage → |