| 50-V ESherburne, MNMSHA 2102953 | Construction Sand and GravelSurface | AbandonedStatus date: 04/07/1994 | Northern Con-Agg IncReported operatorEdward A EganReported controller | Neither history importedView source coverage → |
| 50VEKoochiching, MNNear RainerMSHA 2103156 | Construction Sand and GravelSurface | AbandonedStatus date: 06/28/2021 | Bowman Construction Company Inc.Reported operatorDarwin JohnsonReported controller | Production / employmentSafety recordsView source coverage → |
| 50 V PioneerBerrien, MIMSHA 2002849 | Construction Sand and GravelSurface | AbandonedStatus date: 07/08/1991 | Yerington Leasing CompanyReported operatorJohn S Yerington IIReported controller | Neither history importedView source coverage → |
| 5-10 Portable Kovman WashplantWard, NDMSHA 3200354 | Construction Sand and GravelFacility | AbandonedStatus date: 06/09/1993 | Gravel Products IncReported operatorGravel Products IncReported controller | Neither history importedView source coverage → |
| 510 Power Sceen #510602Caledonia, VTNear HardwickMSHA 4300689 | Sand, Industrial NECSurface | AbandonedStatus date: 08/03/2023 | Gravel Construction Company IncReported operatorDana M Gravel; Dean A GravelReported controller | Production / employmentSafety recordsView source coverage → |
| #5 1/2 MineHarlan, KYMSHA 1512450 | Coal (Bituminous)Underground | AbandonedStatus date: 08/11/1981 | F & D Coal Company IncReported operatorNicholas SaylorReported controller | Neither history importedView source coverage → |
| 517399Wright, MNNear ClearwaterMSHA 2103932 | Construction Sand and GravelSurface | AbandonedStatus date: 07/01/2026 | Knife River North CentralReported operatorKnife River CorporationReported controller | Production / employmentSafety recordsView source coverage → |
| 518 PITHarris, TXMSHA 4103592 | Construction Sand and GravelSurface | AbandonedStatus date: 07/31/2001 | Rsh TruckingReported operatorRichard S HughesReported controller | Production / employmentSafety recordsView source coverage → |
| 51 DevelopmentAllegheny, PANear ElizabethMSHA 3606827 | Coal (Bituminous)Surface | AbandonedStatus date: 07/31/1981 | Eugene PetriccaReported operatorPetricca EugeneReported controller | Neither history importedView source coverage → |
| 51 Sand and GravelHood, TXNear GranburyMSHA 4105381 | Construction Sand and GravelSurface | AbandonedStatus date: 05/21/2024 | Martin Marietta Materials Southwest, LLCReported operatorMartin Marietta Materials IncReported controller | Production / employmentSafety recordsView source coverage → |
| 51st Ave. Plant 35Maricopa, AZNear MesaMSHA 0202611 | Construction Sand and GravelSurface | AbandonedStatus date: 02/17/2012 | Martin Marietta Materials, IncReported operatorMartin Marietta Materials IncReported controller | Production / employmentSafety recordsView source coverage → |
| #51 SurfacePerry, KYNear NedMSHA 1515416 | Coal (Bituminous)Surface | AbandonedStatus date: 12/28/1990 | Whitaker Coal CorpReported operatorSunoco, Inc.Reported controller | Neither history importedView source coverage → |
| 51 Systems MineMarion, WVNear Rachel, WvMSHA 4608073 | Coal (Bituminous)Surface | AbandonedStatus date: 06/06/1996 | 51 SystemsReported operatorKhrsnak G FReported controller | Neither history importedView source coverage → |
| #52Marion, TNNear WhitwellMSHA 4003005 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 04/09/1991 | Watts Mining Company IncReported operatorWatts EdwardReported controller | Neither history importedView source coverage → |
| 5200-5216 Brown Rock PitGrays Harbor, WAMSHA 4502932 | Crushed, Broken TraprockSurface | AbandonedStatus date: 04/17/1985 | Itt Rayonier IncReported operatorITT CorpReported controller | Neither history importedView source coverage → |
| 5200 Deep Creek QuarryGrays Harbor, WAMSHA 4502359 | Crushed, Broken TraprockSurface | AbandonedStatus date: 03/09/1978 | Itt Rayonier IncReported operatorITT CorpReported controller | Neither history importedView source coverage → |
| 5204 84 Quarry Or 5204 8 QuarryGrays Harbor, WAMSHA 4502360 | Crushed, Broken TraprockSurface | AbandonedStatus date: 04/26/1985 | Itt Rayonier IncReported operatorITT CorpReported controller | Neither history importedView source coverage → |
| 5214 51 QuarryClallam, WAMSHA 4502747 | Crushed, Broken TraprockSurface | AbandonedStatus date: 12/10/1985 | Itt Rayonier IncReported operatorITT CorpReported controller | Neither history importedView source coverage → |
| 5250 Deep Creek QuarryGrays Harbor, WAMSHA 4502362 | Crushed, Broken TraprockSurface | AbandonedStatus date: 08/04/1980 | Itt Rayonier IncReported operatorITT CorpReported controller | Neither history importedView source coverage → |
| 5252 Deep Creek QuarryGrays Harbor, WAMSHA 4502361 | Crushed, Broken TraprockSurface | AbandonedStatus date: 04/17/1985 | Itt Rayonier IncReported operatorITT CorpReported controller | Neither history importedView source coverage → |
| 5260 Portable Unit #493 SN 410124Mitchell, TXNear Colorado CityMSHA 4104668 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 04/28/2021 | Concrete MobilityReported operatorBrenda L FloodReported controller | Production / employmentSafety recordsView source coverage → |
| #52 MineGreenbrier, WVNear RupertMSHA 4606133 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 12/03/1985 | Maple Leaf Coal Company IncReported operatorRedden Steve WReported controller | Neither history importedView source coverage → |
| #53 Mine UgWyoming, WVMSHA 4602520 | Coal (Bituminous)Underground | AbandonedStatus date: 01/07/1972 | Robinson-Phillips Coal Company IncReported operatorMassey Energy CompanyReported controller | Neither history importedView source coverage → |
| 543 CrusherStearns, MNNear St. CloudMSHA 2101504 | Construction Sand and GravelSurface | AbandonedStatus date: 07/24/2018 | Stommes ConstructionReported operatorRandy StommesReported controller | Production / employmentSafety recordsView source coverage → |
| 543-SKeweenaw, MIMSHA 2002950 | Copper Ore NECUnderground | AbandonedStatus date: 07/01/1996 | Keweenaw Copper Company IncReported operatorGreat Lakes Minerals IncReported controller | Neither history importedView source coverage → |
| 544 CRUSHERChippewa, MIMSHA 2002992 | Construction Sand and GravelSurface | AbandonedStatus date: 06/06/2001 | Montgomery Aggregate Products CompanyReported operatorWilliam E MontgomeryReported controller | Production / employmentSafety recordsView source coverage → |
| 545 Clay PitOrange, FLMSHA 0801152 | Common Clays NECSurface | AbandonedStatus date: 01/04/1994 | 545 Clay & Landfill IncReported operatorBurden Randy OReported controller | Neither history importedView source coverage → |
| #54-A MineGreenbrier, WVNear RupertMSHA 4606748 | Coal (Bituminous)Underground | Abandoned and SealedStatus date: 09/06/1984 | Maple Leaf Coal Company IncReported operatorRedden Steve WReported controller | Neither history importedView source coverage → |
| 54-Cedar Rapids -953Grand Traverse, MINear Traverse CityMSHA 2003287 | Construction Sand and GravelSurface | AbandonedStatus date: 06/01/2015 | Elmer's Crane and Dozer, Inc.Reported operatorRR Holdco, Inc.Reported controller | Production / employmentSafety recordsView source coverage → |
| 54 Inch Cone CrusherNavajo, AZMSHA 0202006 | Construction Sand and GravelSurface | AbandonedStatus date: 06/20/1983 | Hatch Construction & Paving IncReported operatorLynn HatchReported controller | Neither history importedView source coverage → |