| Carpenter Creek MineMusselshell, MTNear MelstoneMSHA 2402531 | Coal (Lignite)Surface | AbandonedStatus date: 01/30/2025 | Carpenter Creek LLCReported operatorJack Hanks; Bruce LemonsReported controller | Neither history importedView source coverage → |
| Cascade QuarryCascade, MTMSHA 2401536 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 08/18/1982 | Mortensen Construction CompanyReported operatorMortensen GlenReported controller | Neither history importedView source coverage → |
| Castles Sapphire MineLewis And Clark, MTMSHA 2401472 | GemstonesSurface | AbandonedStatus date: 12/30/1982 | Wesley & Ruth B CastlesReported operatorWesley & Ruth B CastlesReported controller | Neither history importedView source coverage → |
| Cateract Flats PlacerJefferson, MTMSHA 2401567 | Gold OreSurface | AbandonedStatus date: 04/06/1982 | Bullock Brothers IncReported operatorBullock AllanReported controller | Neither history importedView source coverage → |
| Cay Plant Missoula, MTNear MissoulaMSHA 2402147 | Construction Sand and GravelSurface | AbandonedStatus date: 02/24/2017 | JD Russell Excavating IncReported operatorJared D RussellReported controller | Production / employmentSafety recordsView source coverage → |
| Cazier QuarryGallatin, MTMSHA 2401806 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 10/31/1988 | Barnard Construction Company IncReported operatorBarnard Construction Company, IncReported controller | Neither history importedView source coverage → |
| C Bar A EarthworksTreasure, MTNear HyshamMSHA 2402716 | Construction Sand and GravelSurface | AbandonedStatus date: 02/05/2019 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| CEC Roadrunner Screen Plant #4080Flathead, MTNear KalispellMSHA 2402543 | Construction Sand and GravelSurface | AbandonedStatus date: 03/05/2012 | Nelcon IncReported operatorMike P White; Val B WhiteReported controller | Production / employmentSafety recordsView source coverage → |
| Cedarapids 2236Lincoln, MTNear EurekaMSHA 2402400 | Construction Sand and GravelSurface | AbandonedStatus date: 11/13/2024 | Keller Logging IncReported operatorTye R Keller; Wilbur W KellerReported controller | Production / employmentSafety recordsView source coverage → |
| CEDARAPIDS PORTABLE CRUSHER 443Sanders, MTNear Hot SpringsMSHA 2402143 | Construction Sand and GravelSurface | AbandonedStatus date: 08/21/2007 | Sanders County Dist #2Reported operatorSanders County - MTReported controller | Production / employmentSafety recordsView source coverage → |
| Cedar Rapids Cone CrusherYellowstone, MTNear BillingsMSHA 2402577 | Crushed, Broken SandstoneSurface | AbandonedStatus date: 04/01/2011 | C & S Construction IncReported operatorEstate of Clint StovallReported controller | Production / employmentView source coverage → |
| Cedar Rapids CrusherLake, MTNear PolsonMSHA 2402096 | Construction Sand and GravelSurface | AbandonedStatus date: 06/24/2009 | Smith Paving & ContractingReported operatorLarry SmithReported controller | Production / employmentSafety recordsView source coverage → |
| Cedar Rapids CrusherStillwater, MTNear FishtailMSHA 2402334 | Construction Sand and GravelSurface | AbandonedStatus date: 06/26/2006 | Gravel Works IncReported operatorCalvin C ClarkReported controller | Production / employmentSafety recordsView source coverage → |
| CENTENNIAL PITDeer Lodge, MTNear ButteMSHA 2401913 | Construction Sand and GravelSurface | AbandonedStatus date: 07/15/2007 | Centennial Concrete IncReported operatorMartyn SalussoReported controller | Production / employmentSafety recordsView source coverage → |
| Century Companies Inc PugmillFergus, MTNear LewistownMSHA 2402128 | Construction Sand and GravelSurface | AbandonedStatus date: 12/06/2012 | Century Companies IncReported operatorAaron Golik; Tracy GolikReported controller | Production / employmentSafety recordsView source coverage → |
| Century Paving Portable CrusherFergus, MTMSHA 2401798 | Construction Sand and GravelSurface | AbandonedStatus date: 08/11/1986 | Century PavingReported operatorJack MorgensternReported controller | Neither history importedView source coverage → |
| Century Silver Mines IncorporatedLewis And Clark, MTMSHA 2401253 | Gold OreUnderground | AbandonedStatus date: 03/13/1981 | Century Silver Mines IncReported operatorFetter HilbertReported controller | Neither history importedView source coverage → |
| Century UnitLewis And Clark, MTMSHA 2401577 | Silver OreUnderground | AbandonedStatus date: 02/18/1982 | Sparrow Resources LtdReported operatorFayram B DaleReported controller | Neither history importedView source coverage → |
| ChartamBroadwater, MTMSHA 2401604 | Gold OreSurface | AbandonedStatus date: 05/09/1989 | Addwest Gold IncReported operatorAddington LarryReported controller | Neither history importedView source coverage → |
| CHARTAMBroadwater, MTNear TOWNSENDMSHA 2402826 | Gold OreUnderground | AbandonedStatus date: 03/16/2026 | HOLMES MINING & CONSULTING LLCReported operatorJory M HolmesReported controller | Neither history importedView source coverage → |
| Cherhill Resources IncorporatedLewis And Clark, MTMSHA 2401908 | Gold OreSurface | AbandonedStatus date: 08/07/1991 | Cherhill Resources IncReported operatorCherhill Resources IncReported controller | Neither history importedView source coverage → |
| Chewculator IncorporatedLake, MTMSHA 2402026 | Construction Sand and GravelSurface | AbandonedStatus date: 08/14/1995 | Chewculater IncorpReported operatorWalton TinaReported controller | Neither history importedView source coverage → |
| Chinese DiggingsJefferson, MTMSHA 2401594 | Gold OreSurface | AbandonedStatus date: 05/22/1985 | Nrs IncReported operatorNugent George A-John F Ratchye & Emerson W ScottReported controller | Neither history importedView source coverage → |
| Chinook Sand & GravelBlaine, MTNear ChinookMSHA 2402362 | Construction Sand and GravelSurface | AbandonedStatus date: 03/30/2005 | John Pike Construction IncReported operatorJohn PikeReported controller | Production / employmentSafety recordsView source coverage → |
| Chouteau County Rd Dist #2Chouteau, MTNear Ft BentonMSHA 2402057 | Construction Sand and GravelSurface | AbandonedStatus date: 10/01/2010 | Chouteau County Rd Dist #2Reported operatorChouteau County-MtReported controller | Production / employmentSafety recordsView source coverage → |
| C.I.B. CRUSHER/SCREEN PLANTPark, MTNear LivingstonMSHA 2402169 | Construction Sand and GravelSurface | AbandonedStatus date: 05/02/2024 | C I B GravelReported operatorClyde BainterReported controller | Production / employmentSafety recordsView source coverage → |
| Cibola ViiiMadison, MTMSHA 2401488 | Gold OreSurface | AbandonedStatus date: 12/22/1982 | Cibola ViiiReported operatorReed David D JrReported controller | Neither history importedView source coverage → |
| Circle Highway Pit & PlantDawson, MTMSHA 2401151 | Construction Sand and GravelSurface | AbandonedStatus date: 07/21/1980 | J & J IncReported operatorJ & J IncReported controller | Neither history importedView source coverage → |
| City of LibbyLincoln, MTNear LibbyMSHA 2402648 | Copper Ore NECSurface | AbandonedStatus date: 08/05/2013 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Clark Brothers Portable Crusher #1Ravalli, MTMSHA 2401420 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 12/16/1982 | Clark Brothers ContractorsReported operatorClark Brothers ContractorsReported controller | Neither history importedView source coverage → |