| Rock Creek QuarryMissoula, MTMSHA 2401295 | Crushed, Broken GraniteSurface | AbandonedStatus date: 06/13/1978 | Finbraaten & Sons ExcavationReported operatorFinbraaten & Sons ExcavationReported controller | Neither history importedView source coverage → |
| Rock FarmMineral, MTNear St RegisMSHA 2402448 | Construction Sand and GravelSurface | AbandonedStatus date: 08/02/2006 | Ken Miller Construction IncReported operatorKen A. MillerReported controller | Production / employmentSafety recordsView source coverage → |
| Rock Ridge QuarryGolden Valley, MTNear RyegateMSHA 2402658 | Sand, Industrial NECSurface | AbandonedStatus date: 05/11/2016 | Rod Cranford Inc.Reported operatorRod A CranfordReported controller | Production / employmentSafety recordsView source coverage → |
| Rock SlideLincoln, MTNear LibbyMSHA 2402278 | Dimension Stone NECSurface | AbandonedStatus date: 08/09/2005 | Gary PalmerReported operatorGary PalmerReported controller | Safety recordsView source coverage → |
| Rocky Mountain Recycling & Cushing LLCMusselshell, MTNear RoundupMSHA 2402319 | Construction Sand and GravelSurface | AbandonedStatus date: 01/07/2004 | Rocky Mountain Recycling & Crushing, LLCReported operatorRay HeiserReported controller | Production / employmentView source coverage → |
| Roe Portable CrusherSweet Grass, MTNear Big TimberMSHA 2402321 | Construction Sand and GravelSurface | AbandonedStatus date: 01/06/2006 | Tom Roe & Son Construction IncReported operatorTom RoeReported controller | Production / employmentSafety recordsView source coverage → |
| Roger Pass MineSanders, MTNear PlainsMSHA 2402381 | Crushed, Broken SlateSurface | AbandonedStatus date: 04/21/2005 | Wild Horse Stone Supply Co.Reported operatorSteve D BlanchardReported controller | Production / employmentSafety recordsView source coverage → |
| Rolling Glen Ranch Sand and GravelBroadwater, MTNear BelgradeMSHA 2402474 | Construction Sand and GravelSurface | AbandonedStatus date: 04/01/2008 | Nitty Gritty LLCReported operatorSteve L Cavanaugh; Susie L CavanaughReported controller | Production / employmentView source coverage → |
| RONNING PITCuster, MTNear MissoulaMSHA 2402105 | Construction Sand and GravelSurface | AbandonedStatus date: 05/19/1999 | Scanlan Construction IncReported operatorLeidholt DuaneReported controller | Neither history importedView source coverage → |
| Rosa BMadison, MTMSHA 2401655 | Gold OreUnderground | AbandonedStatus date: 04/06/1984 | Madison AssociatesReported operatorMadison AssociatesReported controller | Neither history importedView source coverage → |
| Rosebud #6Rosebud, MTNear ColstripMSHA 2400107 | Coal (Lignite)Surface | Abandoned and SealedStatus date: 12/21/1984 | Western Energy CompanyReported operatorMontana Power CompanyReported controller | Neither history importedView source coverage → |
| Royal Teton Portable CrusherPark, MTMSHA 2401741 | Construction Sand and GravelSurface | AbandonedStatus date: 09/08/1994 | Royal Teton RanchReported operatorProphet Elizabeth ClareReported controller | Neither history importedView source coverage → |
| Rumley MineJefferson, MTMSHA 2400220 | Gold OreSurface | AbandonedStatus date: 06/27/1985 | Billern CorpReported operatorEspey WilliamReported controller | Neither history importedView source coverage → |
| RumphPowder River, MTNear BiddleMSHA 2402623 | Construction Sand and GravelSurface | AbandonedStatus date: 08/20/2012 | Apex Field Service LLCReported operatorAlex R Rumph; Christopher R RumphReported controller | Neither history importedView source coverage → |
| Rusty Bucket IncCarbon, MTNear RobertsMSHA 2402384 | Construction Sand and GravelSurface | AbandonedStatus date: 04/01/2005 | Rusty Bucket IncReported operatorDennis D Purcell; Russ W PurcellReported controller | Safety recordsView source coverage → |
| Rye Creek MineRavalli, MTNear DarbyMSHA 2402602 | Rare Earths OreFacility | AbandonedStatus date: 07/19/2016 | Rye Creek LLCReported operatorBloom EnergyReported controller | Production / employmentSafety recordsView source coverage → |
| Ry & K Mine & MillMadison, MTMSHA 2401408 | Gold OreUnderground | AbandonedStatus date: 06/08/1978 | Ry & K Development CompanyReported operatorRy & K Development CompanyReported controller | Neither history importedView source coverage → |
| Safe Haven MineLewis And Clark, MTNear HelenaMSHA 2402359 | Construction Sand and GravelSurface | AbandonedStatus date: 06/06/2012 | J M Safe Haven A LLCReported operatorBrent Edwin PalmerReported controller | Production / employmentSafety recordsView source coverage → |
| Salois Construction Portable CrusherPondera, MTNear ConradMSHA 2402673 | Construction Sand and GravelSurface | AbandonedStatus date: 05/02/2024 | Salois ConstructionReported operatorTim James SaloisReported controller | Production / employmentView source coverage → |
| Salveson #1 PortableBig Horn, MTMSHA 2401844 | Construction Sand and GravelSurface | AbandonedStatus date: 06/14/1990 | Salveson Construction CompanyReported operatorSalveson Robert AReported controller | Neither history importedView source coverage → |
| Sanders County Dist 1, 2 & 3Sanders, MTNear PlainsMSHA 2402526 | Construction Sand and GravelSurface | AbandonedStatus date: 08/06/2026 | Sanders CountyReported operatorSanders County - MTReported controller | Production / employmentSafety recordsView source coverage → |
| Sanders County GrizSanders, MTNear Trout CreekMSHA 2402575 | Construction Sand and GravelSurface | AbandonedStatus date: 01/15/2011 | Sanders CountyReported operatorSanders County - MTReported controller | Production / employmentView source coverage → |
| Sandon Gravel Pit #1Flathead, MTNear KalispellMSHA 2402352 | Construction Sand and GravelSurface | AbandonedStatus date: 03/07/2006 | Sandon Construction Co. Inc.Reported operatorGregory A SandonReported controller | Production / employmentSafety recordsView source coverage → |
| SAPPHIRE PRE MIXRavalli, MTMSHA 2401901 | Construction Sand and GravelSurface | AbandonedStatus date: 05/10/2001 | Sapphire Pre Mix IncReported operatorRobert PowellReported controller | Production / employmentSafety recordsView source coverage → |
| Sapphires VenturesLewis And Clark, MTMSHA 2401474 | GemstonesSurface | AbandonedStatus date: 06/29/1983 | G & L MiningReported operatorResource Investment IncReported controller | Neither history importedView source coverage → |
| Saranac MineGranite, MTMSHA 2401810 | Gold OreUnderground | AbandonedStatus date: 03/13/1987 | Mc Donald Mining & MillingReported operatorMc Donald John W (Pat)Reported controller | Neither history importedView source coverage → |
| Saturday SundayPowell, MTNear Deer LodgeMSHA 2402525 | Construction Sand and GravelSurface | AbandonedStatus date: 07/24/2008 | Saturday Sunday LLCReported operatorHarley Whitney; Steve PengraReported controller | Production / employmentSafety recordsView source coverage → |
| Sauerkraut PlacerLewis And Clark, MTMSHA 2401852 | Gold OreSurface | AbandonedStatus date: 07/31/1995 | Clay A LewisReported operatorLewis Clay AReported controller | Neither history importedView source coverage → |
| SAVOY QUARRYCascade, MTNear Fort ShawMSHA 2401339 | Crushed, Broken TraprockSurface | AbandonedStatus date: 09/20/2007 | Walter SavoyReported operatorWalter SavoyReported controller | Production / employmentSafety recordsView source coverage → |
| Sawpit Placer MineGranite, MTMSHA 2401834 | Gold OreSurface | AbandonedStatus date: 07/14/1987 | Howard Mining & Exploration CompanyReported operatorHoward Kenneth LReported controller | Neither history importedView source coverage → |