| No Name MineButte, IDNear HamerMSHA 1001648 | Silver OreType not reported | AbandonedStatus date: 07/10/1985 | Operator not reportedReported operatorController not reportedReported controller | Neither history importedView source coverage → |
| NorstrandIdaho, IDNear Elk CityMSHA 1002334 | Construction Sand and GravelSurface | AbandonedStatus date: 10/12/2024 | NorstrandReported operatorRonald S NorlandReported controller | Production / employmentSafety recordsView source coverage → |
| North Idaho College Atlas MineShoshone, IDMSHA 1000168 | Silver OreUnderground | AbandonedStatus date: 10/03/1989 | North Idaho CollegeReported operatorNorth Idaho CollegeReported controller | Neither history importedView source coverage → |
| Northwest Aggregates Of Idaho IncorporatNez Perce, IDMSHA 1001345 | Crushed, Broken TraprockSurface | AbandonedStatus date: 12/21/1983 | Northwest Aggregates Of Idaho IncReported operatorIngram Donald LReported controller | Neither history importedView source coverage → |
| Northwest Portable Plant #1Twin Falls, IDMSHA 1001769 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 04/05/1988 | Northwest Crane Rigging & Transport CompanyReported operatorRockey SligarReported controller | Neither history importedView source coverage → |
| Nugget Creek PlacerIdaho, IDMSHA 1001495 | Gold OreSurface | AbandonedStatus date: 10/01/1983 | David L MendenhallReported operatorDavid L MendenhallReported controller | Neither history importedView source coverage → |
| Nut Basin PitIdaho, IDMSHA 1001360 | Crushed, Broken TraprockSurface | AbandonedStatus date: 10/15/1981 | Matthews Maintenance-Florence IdahoReported operatorMatthews Maintenance-Florence IdahoReported controller | Neither history importedView source coverage → |
| Oakley PitCassia, IDMSHA 1000752 | Construction Sand and GravelSurface | AbandonedStatus date: 08/25/1994 | Kloepfer IncReported operatorKarl H KloepferReported controller | Neither history importedView source coverage → |
| Oakley PitCassia, IDMSHA 1000758 | Construction Sand and GravelSurface | AbandonedStatus date: 07/06/1979 | Magic Valley Sand & Gravel IncReported operatorJames E McGillReported controller | Neither history importedView source coverage → |
| Oakley PitCassia, IDMSHA 1000954 | Construction Sand and GravelSurface | AbandonedStatus date: 11/22/1978 | Beymer Paving IncReported operatorBeymer Paving IncReported controller | Neither history importedView source coverage → |
| Oakley PitCassia, IDMSHA 1001646 | Construction Sand and GravelSurface | AbandonedStatus date: 08/19/1988 | Magic Valley Sand & Gravel IncReported operatorJames E McGillReported controller | Neither history importedView source coverage → |
| Oakley Stone QuarryBlaine, IDMSHA 1001807 | Dimension Stone NECSurface | AbandonedStatus date: 11/23/1988 | Stone Peddler QuarriesReported operatorHamm BillReported controller | Neither history importedView source coverage → |
| Obsidian PitCuster, IDMSHA 1001407 | Construction Sand and GravelSurface | AbandonedStatus date: 01/01/1980 | Western Construction IncReported operatorSteven C HeatonReported controller | Neither history importedView source coverage → |
| OCEAN BEDROCK INDUSTRIAL STONE SUPPLYShoshone, IDNear ST. MARIESMSHA 1002072 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 07/18/2005 | O.B.I.S.S.Reported operatorEric F KiserReported controller | Safety recordsView source coverage → |
| O'Hara Creek QuarryIdaho, IDMSHA 1001468 | Crushed, Broken TraprockSurface | AbandonedStatus date: 01/15/1981 | B & N Construction IncReported operatorArthur R BrandReported controller | Neither history importedView source coverage → |
| O'Hara Rock SourceIdaho, IDMSHA 1001350 | Crushed, Broken GraniteSurface | AbandonedStatus date: 06/01/1981 | B & N Construction IncReported operatorArthur R BrandReported controller | Neither history importedView source coverage → |
| Ola Mill & MineIdaho, IDMSHA 1000998 | Gold OreUnderground | AbandonedStatus date: 10/04/1979 | Donoho & JohnsonReported operatorDonoho & JohnsonReported controller | Neither history importedView source coverage → |
| Old Camp Y PitClearwater, IDMSHA 1001104 | Crushed, Broken TraprockSurface | AbandonedStatus date: 02/20/1980 | Poppie CorpReported operatorPoppie CorpReported controller | Neither history importedView source coverage → |
| Oldcastle Infrastructure Idaho FallsBonneville, IDNear Idaho FallsMSHA 1000884 | PumiceSurface | AbandonedStatus date: 10/01/2021 | Oldcastle InfrastructureReported operatorCRH PLCReported controller | Production / employmentSafety recordsView source coverage → |
| OlsenBoise, IDNear PlacervilleMSHA 1002236 | Gold OreSurface | AbandonedStatus date: 12/19/2016 | OlsenReported operatorMichael Carl McReynoldsReported controller | Production / employmentSafety recordsView source coverage → |
| ONEIDA MINEOneida, IDNear OneidaMSHA 1001962 | PerliteSurface | AbandonedStatus date: 09/24/2002 | Idaho Minerals LlcReported operatorJ Marvin HessReported controller | Production / employmentSafety recordsView source coverage → |
| Opal Mountain MineClark, IDMSHA 1000566 | GemstonesSurface | AbandonedStatus date: 09/01/1982 | Jeppesen & Wilson CoReported operatorJeppesen & Wilson CoReported controller | Neither history importedView source coverage → |
| Orofino Creek MineClearwater, IDMSHA 1001869 | Gold OreSurface | AbandonedStatus date: 08/21/1991 | Yellow Eagle Mining IncReported operatorRich EdwardReported controller | Neither history importedView source coverage → |
| Oro-Fino Placer IncorporatedClearwater, IDMSHA 1001611 | Gold OreSurface | AbandonedStatus date: 09/28/1984 | International Oro-Fino Placer IncReported operatorWille HorstReported controller | Neither history importedView source coverage → |
| Orogrande QuarryClearwater, IDMSHA 1001402 | Crushed, Broken TraprockSurface | AbandonedStatus date: 03/23/1983 | De Atley Company IncReported operatorEucon CorporationReported controller | Neither history importedView source coverage → |
| Osburn PlantShoshone, IDNear OsburnMSHA 1000579 | Construction Sand and GravelSurface | AbandonedStatus date: 08/09/2011 | Zanetti Brothers IncReported operatorWilliam ZanettiReported controller | Production / employmentSafety recordsView source coverage → |
| OWYHEE CALCIUM INCOwyhee, IDNear GrandviewMSHA 1001817 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 09/20/2002 | Owyhee Calcium IncReported operatorGeorge L Collingham JrReported controller | Production / employmentSafety recordsView source coverage → |
| Ozark ExtensionIdaho, IDMSHA 1000993 | Gold OreUnderground | AbandonedStatus date: 10/01/1984 | Bruno KrauseReported operatorBruno KrauseReported controller | Neither history importedView source coverage → |
| Pacific 9a MineCuster, IDMSHA 1000691 | FluorsparUnderground | AbandonedStatus date: 11/22/1978 | Umont Mining CompanyReported operatorUmont Mining CompanyReported controller | Neither history importedView source coverage → |
| Pack Saddle PitTeton, IDNear DriggsMSHA 1002253 | Construction Sand and GravelSurface | AbandonedStatus date: 08/05/2015 | MD Landscaping & Excavating, Inc.Reported operatorMike StearsReported controller | Neither history importedView source coverage → |