| Buster Creek PitClatsop, ORMSHA 3502521 | Crushed, Broken TraprockSurface | AbandonedStatus date: 09/10/1979 | Oregon State Forestry DepartmentReported operatorState Of OregonReported controller | Neither history importedView source coverage → |
| Butler PitBaker, ORMSHA 3502766 | Construction Sand and GravelSurface | AbandonedStatus date: 11/22/1978 | Baker County Road DepartmentReported operatorBaker County - OrReported controller | Neither history importedView source coverage → |
| Butteville QuarryMarion, ORMSHA 3502102 | Crushed, Broken TraprockSurface | AbandonedStatus date: 06/15/1979 | Henry WilmesReported operatorHenry WilmesReported controller | Neither history importedView source coverage → |
| Buzzard Pit And PlantDouglas, ORMSHA 3502665 | Crushed, Broken TraprockSurface | AbandonedStatus date: 06/14/1978 | W B Logging CompanyReported operatorW B Logging CompanyReported controller | Neither history importedView source coverage → |
| Cake PitDeschutes, ORMSHA 3502592 | Construction Sand and GravelSurface | AbandonedStatus date: 05/01/1978 | R L CoatsReported operatorEric W CoatsReported controller | Neither history importedView source coverage → |
| Cake PitDeschutes, ORNear BendMSHA 3502931 | Construction Sand and GravelSurface | AbandonedStatus date: 02/09/2022 | Shevlin Sand & Gravel LLCReported operatorEric W CoatsReported controller | Production / employmentSafety recordsView source coverage → |
| Camas Creek PitDouglas, ORMSHA 3503028 | Crushed, Broken TraprockSurface | AbandonedStatus date: 10/21/1980 | Flintstone Crushing & Construction CompanyReported operatorHanes Aubrey WReported controller | Neither history importedView source coverage → |
| Camp Abbot PitDeschutes, ORMSHA 3502437 | PumiceSurface | AbandonedStatus date: 03/24/1980 | Rock Process IncReported operatorRichard L GillilandReported controller | Neither history importedView source coverage → |
| Camp CarsonUnion, ORMSHA 3503081 | Gold OreSurface | AbandonedStatus date: 09/23/1982 | Royal Western MiningReported operatorRoyal Western MiningReported controller | Neither history importedView source coverage → |
| Camp PitLane, ORMSHA 3500200 | Crushed, Broken TraprockSurface | AbandonedStatus date: 08/02/1991 | Larry Beers LoggingReported operatorBeers LarryReported controller | Neither history importedView source coverage → |
| Camp QuarryLane, ORMSHA 3503500 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 08/02/2001 | Duman IncReported operatorTerry W DumanReported controller | Production / employmentSafety recordsView source coverage → |
| Canyon Mountain MineGrant, ORMSHA 3503339 | Gold OreSurface | AbandonedStatus date: 10/01/1990 | Camm-Tex International IncReported operatorCamm-Tex InternationalReported controller | Neither history importedView source coverage → |
| Cape Mountain PitLane, ORMSHA 3502829 | Crushed, Broken TraprockSurface | AbandonedStatus date: 01/18/1983 | Cape Mountain Rock Products IncReported operatorCape Mountain Rock Products IncReported controller | Neither history importedView source coverage → |
| CAPITOL PORTABLE CRUSHINGMarion, ORMSHA 3503276 | Crushed, Broken TraprockSurface | AbandonedStatus date: 05/27/1997 | Capitol Crushing CompanyReported operatorBaxter DanReported controller | Neither history importedView source coverage → |
| Carlon's Gravel Pit LLCJosephine, ORNear Cave JunctionMSHA 3503770 | Gold OreSurface | AbandonedStatus date: 01/13/2012 | Carlon's Gravel Pit LLCReported operatorRobert R. Carlon Jr.; Robert R. Carlon Sr.Reported controller | Production / employmentSafety recordsView source coverage → |
| Carpenter Pit & PlantGrant, ORMSHA 3500493 | Construction Sand and GravelSurface | AbandonedStatus date: 01/12/1987 | Grant County Redi-MixReported operatorGrant County-OrReported controller | Neither history importedView source coverage → |
| Carver Pit & Plant #2Clackamas, ORMSHA 3502835 | Construction Sand and GravelSurface | AbandonedStatus date: 07/18/1980 | Saxton Crushing CompanyReported operatorSaxton JohnReported controller | Neither history importedView source coverage → |
| Carver Pit & Plant #3Clackamas, ORMSHA 3502834 | Crushed, Broken TraprockSurface | AbandonedStatus date: 01/02/1979 | Houck & Mc Call CorpReported operatorHouck C T & Chuck Mc CallReported controller | Neither history importedView source coverage → |
| Cascade Locks Pit And PlantHood River, ORMSHA 3500498 | Construction Sand and GravelSurface | AbandonedStatus date: 06/01/1978 | Hood River Sand & GravelReported operatorCRH PLCReported controller | Neither history importedView source coverage → |
| CASCADE ROCK, INCDouglas, ORMSHA 3503430 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 09/17/2001 | Cascade Rock IncReported operatorStan HolmgrenReported controller | Production / employmentSafety recordsView source coverage → |
| Cathedral PitKlamath, ORMSHA 3503036 | Crushed, Broken TraprockSurface | AbandonedStatus date: 12/07/1982 | Klamath County Road DepartmentReported operatorKlamath County - OrReported controller | Neither history importedView source coverage → |
| C B Ranch PitDouglas, ORMSHA 3502965 | Crushed, Broken TraprockSurface | AbandonedStatus date: 01/09/1980 | Sun Studs IncReported operatorFred SohnReported controller | Neither history importedView source coverage → |
| CENTRAL OREGON PUMICE COMPANYDeschutes, ORMSHA 3500323 | PumiceSurface | AbandonedStatus date: 09/30/1997 | Central Oregon Pumice CompanyReported operatorMiller William EReported controller | Neither history importedView source coverage → |
| Central Point Portable CrusherKlamath, ORMSHA 3503130 | Crushed, Broken TraprockSurface | AbandonedStatus date: 08/28/1985 | Weathers Crushing IncReported operatorDarwin WeathersReported controller | Neither history importedView source coverage → |
| Champion MineLane, ORMSHA 3503076 | Gold OreUnderground | AbandonedStatus date: 10/01/1984 | Hanuman Mines Ltd IncReported operatorHanuman Mines Ltd IncReported controller | Neither history importedView source coverage → |
| Chappell PitColumbia, ORMSHA 3502489 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 09/11/1995 | Deane S Chappell Rock & Construction CompanyReported operatorChappell Deane SReported controller | Neither history importedView source coverage → |
| Cheney CreekJosephine, ORNear WildervilleMSHA 3503783 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 02/28/2014 | Bottroff Excavation LLCReported operatorMatt BottroffReported controller | Production / employmentSafety recordsView source coverage → |
| Cherry Creek PitKlamath, ORNear KLAMATH FALLSMSHA 3503332 | Construction Sand and GravelSurface | AbandonedStatus date: 12/05/2016 | Knife River Corporation-NorthwestReported operatorKnife River CorporationReported controller | Production / employmentSafety recordsView source coverage → |
| Chetco-Panther PitCurry, ORMSHA 3502938 | Crushed, Broken TraprockSurface | AbandonedStatus date: 04/29/1985 | G S Hulsey Crushing IncReported operatorHulsey Gregory SReported controller | Neither history importedView source coverage → |
| China Bar MineBaker, ORMSHA 3502388 | Gold OreSurface | AbandonedStatus date: 11/22/1978 | Willard Francis OwnerReported operatorWillard Francis OwnerReported controller | Neither history importedView source coverage → |