| Hecla MineSilver Bow, MTMSHA 2400687 | Silver OreUnderground | AbandonedStatus date: 01/14/1980 | National Minerals CorpReported operatorDelaney Robert LReported controller | Neither history importedView source coverage → |
| HENRY CREEKSanders, MTNear Hot SpringsMSHA 2402237 | Dimension Stone NECSurface | AbandonedStatus date: 06/28/2006 | Stone EmporiumReported operatorDavid IlacReported controller | Production / employmentSafety recordsView source coverage → |
| Henry - SixmileSanders, MTNear PlainsMSHA 2402241 | Dimension Stone NECSurface | AbandonedStatus date: 01/01/2009 | Stone EmporiumReported operatorDavid IlacReported controller | Production / employmentSafety recordsView source coverage → |
| Herness Richland, MTNear Seely LakeMSHA 2402614 | Construction Sand and GravelSurface | AbandonedStatus date: 09/09/2014 | Pulicic Contracting Inc.Reported operatorArno PuliciReported controller | Production / employmentSafety recordsView source coverage → |
| Herrig CreekFlathead, MTNear cOLUMBIA fALLSMSHA 2402376 | Dimension Stone NECSurface | AbandonedStatus date: 03/06/2006 | Stanton Stone Supply, Inc.Reported operatorRonald R StantonReported controller | Production / employmentSafety recordsView source coverage → |
| H & HFlathead, MTNear FlatheadMSHA 2402234 | Dimension Stone NECSurface | AbandonedStatus date: 08/06/2003 | H & H GoodstoneReported operatorBrandon Heuscher; Brian HeuscherReported controller | Neither history importedView source coverage → |
| Hidden TreasureMissoula, MTMSHA 2401584 | Gold OreUnderground | AbandonedStatus date: 12/02/1981 | Viking Explorations IncReported operatorViking Explorations IncReported controller | Neither history importedView source coverage → |
| Highland Gold Properties IncorporatedSilver Bow, MTMSHA 2401727 | Gold OreSurface | AbandonedStatus date: 07/30/1992 | Highland Gold Properties IncReported operatorJohns Willis EstateReported controller | Neither history importedView source coverage → |
| Highland QuartersSilver Bow, MTMSHA 2401731 | Gold OreSurface | AbandonedStatus date: 06/11/1986 | Highland Quarters CompanyReported operatorSchmidt Willard-Jeffrey SmithReported controller | Neither history importedView source coverage → |
| Highline Road PitGallatin, MTNear BozemanMSHA 2402338 | Construction Sand and GravelSurface | AbandonedStatus date: 01/28/2025 | Kenyon Noble Ready MixReported operatorRichard J OgleReported controller | Production / employmentSafety recordsView source coverage → |
| High Ridge MineBeaverhead, MTMSHA 2401764 | Gold OreUnderground | AbandonedStatus date: 08/06/1992 | Thunder Ridge MinesReported operatorPalmer MarvinReported controller | Neither history importedView source coverage → |
| Hilde Portable Crusher #1Cascade, MTMSHA 2401421 | Construction Sand and GravelSurface | AbandonedStatus date: 06/04/1990 | Hilde Construction Company IncReported operatorHilde David WReported controller | Neither history importedView source coverage → |
| Hilde Wash PlantCascade, MTMSHA 2401503 | Construction Sand and GravelSurface | AbandonedStatus date: 08/03/1983 | Hilde Construction Company IncReported operatorHilde David WReported controller | Neither history importedView source coverage → |
| Hilger MillFergus, MTMSHA 2401289 | Lead-Zinc OreFacility | AbandonedStatus date: 05/17/1979 | Hilger Ore Milling Company IncReported operatorHilger Ore Milling Company IncReported controller | Neither history importedView source coverage → |
| Hill County Hill, MTNear HarveMSHA 2402008 | Construction Sand and GravelSurface | AbandonedStatus date: 08/16/2021 | Hill County Road DepartmentReported operatorHill County-MtReported controller | Production / employmentSafety recordsView source coverage → |
| Hill PitCascade, MTNear BeltMSHA 2402589 | Construction Sand and GravelSurface | AbandonedStatus date: 05/02/2017 | Travis Johnson Ent. Inc.Reported operatorTravis L JohnsonReported controller | Production / employmentSafety recordsView source coverage → |
| Hillside PitBroadwater, MTNear TostonMSHA 2402793 | LimeSurface | AbandonedStatus date: 04/13/2026 | Hillside Drilling &Rock StabilizationReported operatorTy L. BalbachReported controller | Production / employmentView source coverage → |
| H L Ostermiller Const. IncYellowstone, MTNear BillingsMSHA 2401689 | Construction Sand and GravelSurface | AbandonedStatus date: 10/21/2016 | H L Ostermiller Construction IncReported operatorHarvey L OstermillerReported controller | Production / employmentSafety recordsView source coverage → |
| H L OSTERMILLER CONST INC (CRUSHYellowstone, MTMSHA 2401947 | Construction Sand and GravelSurface | AbandonedStatus date: 11/11/1998 | H L Ostermiller Construction IncReported operatorHarvey L OstermillerReported controller | Production / employmentView source coverage → |
| Hoe Const PitMadison, MTNear McAllisterMSHA 2402514 | Construction Sand and GravelSurface | AbandonedStatus date: 01/01/2009 | Tim S HoeReported operatorTim S HoeReported controller | Neither history importedView source coverage → |
| Hog Heaven MineFlathead, MTMSHA 2400284 | Silver OreUnderground | AbandonedStatus date: 09/09/1988 | Coca Mines IncReported operatorCoca Mines IncReported controller | Neither history importedView source coverage → |
| HOLMES GULCH PROTECTJefferson, MTMSHA 2402210 | Gold OreSurface | AbandonedStatus date: 05/29/2001 | Mineral Rights UnlimitedReported operatorLee Reynolds Jr; Dan PrebilReported controller | Production / employmentSafety recordsView source coverage → |
| Homestead Quarry Wheatland, MTNear HarlowtonMSHA 2402685 | Dimension Stone NECSurface | AbandonedStatus date: 10/29/2019 | Eastside Enterprises Reported operatorScott D SmithReported controller | Production / employmentSafety recordsView source coverage → |
| Hoover Creek QuarryCascade, MTMSHA 2401404 | Construction Sand and GravelSurface | AbandonedStatus date: 01/09/1980 | Montana Highway DepartmentReported operatorMontana Highway DepartmentReported controller | Neither history importedView source coverage → |
| Hope MinesGranite, MTMSHA 2401549 | Silver OreUnderground | AbandonedStatus date: 07/29/1982 | Contact Mining Company IncReported operatorTimothy AntonioliReported controller | Neither history importedView source coverage → |
| HORSECREEK PITMadison, MTNear SheridanMSHA 2402212 | Dimension Stone NECSurface | AbandonedStatus date: 09/23/2003 | R E Miller & SonsReported operatorRex Leipheimer; John JefferyReported controller | Production / employmentSafety recordsView source coverage → |
| Hot SpotPowell, MTMSHA 2401671 | Gold OreSurface | AbandonedStatus date: 07/27/1984 | T & K MiningReported operatorT & K MiningReported controller | Neither history importedView source coverage → |
| Hot Springs MineMadison, MTMSHA 2401794 | Gold OreSurface | AbandonedStatus date: 10/01/1985 | Double Eagle Mining CorpReported operatorTate JamesReported controller | Neither history importedView source coverage → |
| Hot Springs QuarrySanders, MTNear Hot SpringsMSHA 2402432 | Dimension Stone NECSurface | AbandonedStatus date: 06/18/2020 | Hadley Stone Supply LLCReported operatorRobert A HadleyReported controller | Production / employmentSafety recordsView source coverage → |
| Houtzel PitHill, MTNear HavreMSHA 2402730 | Dimension Stone NECSurface | AbandonedStatus date: 02/05/2019 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |