| Gold CoinDeer Lodge, MTMSHA 2401780 | Gold OreUnderground | AbandonedStatus date: 07/16/1990 | Gold Coin Mining IncReported operatorSterling Robert EReported controller | Neither history importedView source coverage → |
| Gold Creek MinePowell, MTMSHA 2401736 | Gold OreSurface | AbandonedStatus date: 02/08/1990 | Superior Western CorpReported operatorDavis JoeReported controller | Neither history importedView source coverage → |
| Gold Creek PlacerPowell, MTNear Gold CreekMSHA 2402656 | Gold OreSurface | AbandonedStatus date: 11/18/2014 | GJC LLCReported operatorGordon JonesReported controller | Production / employmentSafety recordsView source coverage → |
| Gold CrownLewis And Clark, MTMSHA 2401591 | Gold OreUnderground | AbandonedStatus date: 04/06/1982 | Normax MinesReported operatorNormax MinesReported controller | Neither history importedView source coverage → |
| Gold Dust AditPark, MTMSHA 2401952 | Gold OreUnderground | AbandonedStatus date: 11/10/1992 | Crown Butte Mines IncReported operatorRovil DaveReported controller | Neither history importedView source coverage → |
| Gold Eagle MillMadison, MTMSHA 2401985 | Gold OreFacility | AbandonedStatus date: 04/29/1993 | Gold Eagle MillReported operatorHansard Don & Randy MackReported controller | Neither history importedView source coverage → |
| Golden AgeJefferson, MTMSHA 2401634 | Gold OreUnderground | AbandonedStatus date: 07/29/1982 | James & KruseReported operatorJames & KruseReported controller | Neither history importedView source coverage → |
| Golden AnchorPowell, MTMSHA 2401602 | Silver OreUnderground | AbandonedStatus date: 08/24/1982 | Bennie SineriusReported operatorBennie SineriusReported controller | Neither history importedView source coverage → |
| Golden AssetsJefferson, MTMSHA 2401484 | Gold OreSurface | AbandonedStatus date: 06/09/1992 | Glen MiningReported operatorLegend FinancialReported controller | Neither history importedView source coverage → |
| Golden Boy GroupMadison, MTNear Virginia CityMSHA 2402517 | Silver OreUnderground | AbandonedStatus date: 04/16/2009 | Madison Mining CoReported operatorRalph A Johnsrud; Debbie S JohnsrudReported controller | Production / employmentView source coverage → |
| Golden Eagle MinesGranite, MTMSHA 2401811 | Gold OreUnderground | AbandonedStatus date: 09/22/1986 | Butte-Anaconda Consolidated Mining CompanyReported operatorJohnson RogerReported controller | Neither history importedView source coverage → |
| Golden FlagLewis And Clark, MTMSHA 2401756 | Gold OreSurface | AbandonedStatus date: 05/22/1985 | Golden Flag Resources IncReported operatorGolden Flag Resources IncReported controller | Neither history importedView source coverage → |
| GOLDEN JUBILEE MINEGranite, MTNear AncondaMSHA 2402187 | Gold OreUnderground | AbandonedStatus date: 02/03/2016 | Gunsinger GroupReported operatorMike GunsingerReported controller | Production / employmentSafety recordsView source coverage → |
| Golden Keel MineMadison, MTMSHA 2401547 | Gold OreSurface | AbandonedStatus date: 10/16/1981 | Kid RidingReported operatorKid RidingReported controller | Neither history importedView source coverage → |
| Golden Sunlight Underground MineJefferson, MTNear WhitehallMSHA 2402286 | Gold OreUnderground | AbandonedStatus date: 05/13/2019 | Redpath USA CorporationReported operatorDeilmann-HanielReported controller | Production / employmentSafety recordsView source coverage → |
| Golden Valley MineGolden Valley, MTNear RyegateMSHA 2402301 | Dimension Stone NECSurface | AbandonedStatus date: 10/22/2004 | American Stoneworks LLCReported operatorCRAIG R BORIS; PATRICIA M BORISReported controller | Production / employmentView source coverage → |
| Gold Finch GroupBeaverhead, MTMSHA 2401745 | Gold OreUnderground | AbandonedStatus date: 08/30/1984 | Robert Hurst MiningReported operatorHurst RobertReported controller | Neither history importedView source coverage → |
| Gold QuarryPark, MTMSHA 2402083 | Dimension Stone NECSurface | AbandonedStatus date: 06/18/1996 | Young Stone MasonryReported operatorJon R YoungReported controller | Neither history importedView source coverage → |
| Gold Rule Placer MinePowell, MTNear DrummondMSHA 2402582 | Gold OreSurface | AbandonedStatus date: 08/01/2017 | Golden Rule Placer Mining Inc.Reported operatorGeorge FrankReported controller | Production / employmentSafety recordsView source coverage → |
| Goose Bay PitFlathead, MTNear KalispellMSHA 2402528 | Construction Sand and GravelSurface | AbandonedStatus date: 03/03/2009 | T & T Contracting Inc.Reported operatorRick TaylorReported controller | Production / employmentSafety recordsView source coverage → |
| Goose Bay Wash PlantFlathead, MTNear KalispellMSHA 2402714 | AgateSurface | AbandonedStatus date: 10/29/2019 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| Gordon and Gerry JonesWheatland, MTNear HarlowtonMSHA 2402604 | Dimension Stone NECSurface | AbandonedStatus date: 07/29/2019 | Gordon and Gerry Jones, LLCReported operatorGerry Jones; Gordon JonesReported controller | Production / employmentSafety recordsView source coverage → |
| Granite Hill #2Broadwater, MTMSHA 2401746 | Gold OreUnderground | AbandonedStatus date: 05/14/1984 | Arnold J KolbergReported operatorKolberg Arnold JReported controller | Neither history importedView source coverage → |
| Granite PortableGranite, MTMSHA 2401925 | Construction Sand and GravelSurface | AbandonedStatus date: 10/03/1994 | Granite CountyReported operatorGranite County-MtReported controller | Neither history importedView source coverage → |
| Grasshopper CreekBeaverhead, MTNear DillonMSHA 2402497 | Gold OreSurface | AbandonedStatus date: 08/05/2008 | B B & AReported operatorRobert D BackReported controller | Neither history importedView source coverage → |
| Grasshopper MineBeaverhead, MTMSHA 2401714 | Gold OreSurface | AbandonedStatus date: 10/20/1983 | R A Hanson Mining CompanyReported operatorRaymond A HansonReported controller | Neither history importedView source coverage → |
| Grasshopper Placer Mining Group LLCBeaverhead, MTNear DillionMSHA 2402686 | Gold OreSurface | AbandonedStatus date: 10/01/2016 | Grasshopper Placer Mining Group LLCReported operatorScion Mineral Partners, LLC; Trelis CorporationReported controller | Production / employmentSafety recordsView source coverage → |
| Gratech Portable #1Roosevelt, MTNear PoplarMSHA 3200748 | Construction Sand and GravelSurface | AbandonedStatus date: 05/01/2023 | Gratech Company, LLCReported operatorHarley NeshemReported controller | Production / employmentSafety recordsView source coverage → |
| Great WesternGranite, MTMSHA 2401732 | Silver OreUnderground | AbandonedStatus date: 09/28/1983 | Great WesternReported operatorWelch JohnReported controller | Neither history importedView source coverage → |
| Green Campbell PropertiesMadison, MTMSHA 2401612 | Gold OreSurface | AbandonedStatus date: 07/29/1982 | Parkers ConstructionReported operatorParker Rodney L & Sharon DReported controller | Neither history importedView source coverage → |