| Reclamation #1 MineAllegany, MDMSHA 1800669 | Coal (Bituminous)Surface | AbandonedStatus date: 09/01/1979 | E & W Coal Company IncReported operatorMurphy Gerald VReported controller | Neither history importedView source coverage → |
| Reds Dove Pit And PlantAnne Arundel, MDNear ?MSHA 1800590 | Construction Sand and GravelSurface | AbandonedStatus date: 04/21/1992 | Reds Dove Sand & Gravel CompanyReported operatorReds Dove Sand & Gravel CompanyReported controller | Neither history importedView source coverage → |
| Reel #1 & #3 UgGarrett, MDMSHA 1800148 | Coal (Bituminous)Underground | AbandonedStatus date: 06/28/1971 | Garrett Coal CorpReported operatorGarrett Coal CorpReported controller | Neither history importedView source coverage → |
| Reliable Pit And MillAnne Arundel, MDMSHA 1800435 | Construction Sand and GravelSurface | AbandonedStatus date: 05/12/1978 | Campbell Sand Company IncReported operatorCampbell Sand Company IncReported controller | Neither history importedView source coverage → |
| Reynolds SidingAllegany, MDNear BartonMSHA 1800687 | Coal (Bituminous)Facility | AbandonedStatus date: 12/01/1981 | Evergreen Coal IncReported operatorPrimary Coal IncReported controller | Neither history importedView source coverage → |
| Richard Duckworth No 1 StripAllegany, MDNear FrostburgMSHA 1800682 | Coal (Bituminous)Surface | AbandonedStatus date: 07/29/1988 | J & R Coal CompanyReported operatorDuckworth John & RichardReported controller | Neither history importedView source coverage → |
| Richard No 1Garrett, MDMSHA 1800207 | Coal (Bituminous)Underground | AbandonedStatus date: 06/29/1971 | Garrett Coal CorpReported operatorGarrett Coal CorpReported controller | Neither history importedView source coverage → |
| Rising Sons' PitAnne Arundel, MDNear ?MSHA 1800697 | Construction Sand and GravelSurface | AbandonedStatus date: 05/25/1993 | Rising Sons' Enterprises IncReported operatorSt Clair Thomas KReported controller | Neither history importedView source coverage → |
| Rock CutAllegany, MDMSHA 1800401 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 02/13/1991 | Cumberland Sand Company IncReported operatorFred E O'BakerReported controller | Neither history importedView source coverage → |
| Rockdale QuarryWashington, MDNear Clear SpringMSHA 1800679 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 08/29/2011 | Bluegrass Materials Company, LLCReported operatorMartin Marietta Materials IncReported controller | Production / employmentSafety recordsView source coverage → |
| Rockville PlantMontgomery, MDMSHA 1800636 | Crushed, Broken GraniteFacility | AbandonedStatus date: 01/21/1980 | H B Mellott Estate IncReported operatorJonathan SchilowitzReported controller | Neither history importedView source coverage → |
| Rocky Ridge PlantFrederick, MDNear FrederickMSHA 1800071 | Common ShaleSurface | AbandonedStatus date: 04/29/2026 | Glen-Gery CorporationReported operatorBrickworks LimitedReported controller | Production / employmentSafety recordsView source coverage → |
| Rossville PitBaltimore, MDNear ?MSHA 1800072 | Common Clays NECSurface | AbandonedStatus date: 04/13/1983 | Baltimore Brick CompanyReported operatorBoral LimitedReported controller | Neither history importedView source coverage → |
| Route 6 PitCharles, MDNear Charlotte HallMSHA 1800771 | Construction Sand and GravelSurface | AbandonedStatus date: 05/15/2006 | Jimmy Richards & Sons Excavating IncReported operatorJames Richards IIIReported controller | Production / employmentSafety recordsView source coverage → |
| RYCZEK QUARRYGarrett, MDNear LonaconingMSHA 1800754 | Dimension SandstoneSurface | AbandonedStatus date: 12/31/2007 | Ryczek Stone QuarryReported operatorRaymond C Ryczek; Thomas A RyczekReported controller | Production / employmentSafety recordsView source coverage → |
| Salem Auger SN 3150Garrett, MDNear OaklandMSHA 1800766 | Coal (Bituminous)Surface | AbandonedStatus date: 01/18/2011 | Wells Auger Mining, IncReported operatorHoward J WellsReported controller | Neither history importedView source coverage → |
| Sand BankAllegany, MDNear FrostburgMSHA 1800760 | Coal (Bituminous)Surface | AbandonedStatus date: 07/25/2018 | Ritchie Trucking & Excavating, Inc.Reported operatorFaith Ritchie; Jody L RitchieReported controller | Production / employmentSafety recordsView source coverage → |
| SAND PLANTAllegany, MDMSHA 1800347 | Crushed, Broken SandstoneSurface | AbandonedStatus date: 03/21/2002 | Cumberland Sand Company IncReported operatorFred E O'BakerReported controller | Production / employmentSafety recordsView source coverage → |
| Sang Run StripGarrett, MDMSHA 1800419 | Coal (Bituminous)Surface | AbandonedStatus date: 12/18/1973 | Keystone Coal & DevelopementReported operatorKeystone Coal & DevelopementReported controller | Neither history importedView source coverage → |
| SannerGarrett, MDNear GrantsvilleMSHA 1800464 | Coal (Bituminous)Surface | AbandonedStatus date: 09/11/1994 | Action Mining IncReported operatorJ Clifford Forrest IIIReported controller | Neither history importedView source coverage → |
| ShaftAllegany, MDNear MidlothianMSHA 1800674 | Coal (Bituminous)Facility | AbandonedStatus date: 09/28/1981 | Cumberland Coal CorpReported operatorThompson James LReported controller | Neither history importedView source coverage → |
| Shaft Md Prep PlantAllegany, MDNear Rt. 936MSHA 1800688 | Coal (Bituminous)Facility | AbandonedStatus date: 09/01/1981 | Frostburg Coal Company IncReported operatorMerlo Charles J JrReported controller | Neither history importedView source coverage → |
| Shallmar No 2 MineGarrett, MDMSHA 1800202 | Coal (Bituminous)Underground | AbandonedStatus date: 06/28/1971 | Buffalo Coal Company IncReported operatorCarl Del Signore Family TrustReported controller | Neither history importedView source coverage → |
| Shellmac StripGarrett, MDMSHA 1800264 | Coal (Bituminous)Surface | AbandonedStatus date: 06/14/1972 | Buffalo Coal Company IncReported operatorCarl Del Signore Family TrustReported controller | Neither history importedView source coverage → |
| Sheriff Road Pit And PlantPrince Georges, MDNear ?MSHA 1800641 | Construction Sand and GravelSurface | AbandonedStatus date: 09/06/1988 | Brandywine Sand & Gravel CompanyReported operatorGlendal Harris; Peter L Babb; John W SpiveyReported controller | Neither history importedView source coverage → |
| Silver Hill Plant & Various PitsPrince Georges, MDNear ?MSHA 1800320 | Construction Sand and GravelSurface | AbandonedStatus date: 07/15/1991 | Silver Hill Aggregates Limited PartnershipReported operatorAggregate Industries PLCReported controller | Neither history importedView source coverage → |
| Stephens PitAnne Arundel, MDMSHA 1800607 | Construction Sand and GravelSurface | AbandonedStatus date: 10/11/1977 | Vernon Hardesty Crane RentalReported operatorVernon Hardesty Crane RentalReported controller | Neither history importedView source coverage → |
| SteyerGarrett, MDNear GormanMSHA 1800724 | Coal (Bituminous)Surface | AbandonedStatus date: 07/25/2018 | Deer Haven Farms, LLCReported operatorRichard Marple; Regina MarpleReported controller | Production / employmentSafety recordsView source coverage → |
| Steyer IIGarrett, MDNear Gorman, MDMSHA 1800761 | Coal (Bituminous)Underground | AbandonedStatus date: 04/22/2019 | Backbone Mountain, LLCReported operatorAlliance Resource Partners LPReported controller | Production / employmentSafety recordsView source coverage → |
| Steyer IIGarrett, MDNear GormanMSHA 1800764 | Coal (Bituminous)Underground | AbandonedStatus date: 09/14/2010 | Steyer Fuel Mining Co, Inc.Reported operatorDavid M MaynardReported controller | Neither history importedView source coverage → |