HISTORICAL SITES / RESEARCH DIRECTORY
Find the public record behind a former mining site. Explore reported locations, mined materials and operating history as a starting point for acquisition, reuse or reclamation research.
History means records exist in the imported sources, including older periods. Missing history is not evidence of a clean safety record. Operator and controller names are the last relationships reported in the Mines snapshot; they are not verified current property owners.
| Mine / reported location | Material / type | Reported status | Reported relationships | Available history |
|---|---|---|---|---|
| Lewis & Lewis, Portable 01Sweetwater, WYNear Rock SpringsMSHA 4801482 | Construction Sand and GravelSurface | AbandonedStatus date: 12/18/2025 | Lewis and LewisReported operatorSummit Materials LLCReported controller | Production / employmentSafety recordsView source coverage → |
| L F QUARRYLaramie, WYMSHA 4801541 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 06/26/1998 | Colorado Lien CompanyReported operatorPete Lien & Sons IncReported controller | Neither history importedView source coverage → |
| Lidstrom Pit #1Platte, WYMSHA 4801143 | Construction Sand and GravelSurface | AbandonedStatus date: 04/17/1989 | Lidstrom IncReported operatorLidstrom IncReported controller | Neither history importedView source coverage → |
| Limestone QuarryNiobrara, WYMSHA 4801138 | Dimension LimestoneSurface | AbandonedStatus date: 03/01/1979 | Rissler & Mc Murry CompanyReported operatorRon McMurryReported controller | Neither history importedView source coverage → |
| LINDLEY GRAVEL PITUinta, WYNear EvanstonMSHA 4801548 | Construction Sand and GravelSurface | AbandonedStatus date: 05/15/2014 | Lindley Construction IncReported operatorGordon E LindleyReported controller | Production / employmentSafety recordsView source coverage → |
| Lisbon MineBig Horn, WYMSHA 4801356 | Uranium OreUnderground | AbandonedStatus date: 10/12/1982 | Bob-Lea Industries IncReported operatorMorton Robert AReported controller | Neither history importedView source coverage → |
| Lisco PitConverse, WYMSHA 4801049 | Construction Sand and GravelSurface | AbandonedStatus date: 04/30/1985 | Eagle Engineering Company IncReported operatorUnited CompaniesReported controller | Neither history importedView source coverage → |
| Little Sheep Mountain Limestone QuarryBig Horn, WYMSHA 4801499 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 08/26/1992 | Nicholls & Lewis IncReported operatorLewis Mike & R DReported controller | Neither history importedView source coverage → |
| L & L Pit-Green RiverSweetwater, WYNear Green RiverMSHA 4801858 | Construction Sand and GravelSurface | AbandonedStatus date: 10/01/2024 | IPE AggregateReported operatorIgnacio MartinezReported controller | Production / employmentSafety recordsView source coverage → |
| Long Canyon MineSweetwater, WYNear Rock SpringsMSHA 4801118 | Coal (Bituminous)Surface | Abandoned and SealedStatus date: 02/19/1986 | Sunoco Energy Development CompanyReported operatorSunoco, Inc.Reported controller | Neither history importedView source coverage → |
| Lost Cause PitCarbon, WYMSHA 4801307 | Construction Sand and GravelSurface | AbandonedStatus date: 02/16/1982 | Quillen CompanyReported operatorQuillen Robert DReported controller | Neither history importedView source coverage → |
| Loudin Drilling IncCarbon, WYNear HannaMSHA 4801495 | Coal (Anthracite)Surface | AbandonedStatus date: 02/11/1991 | Loudin Drilling IncReported operatorLoudin Jack BReported controller | Neither history importedView source coverage → |
| Lovell Clay Products No 2 Shale PitBig Horn, WYMSHA 4800071 | Common Clays NECSurface | AbandonedStatus date: 09/13/1978 | Lovell Clay Products CompanyReported operatorStewart RalphReported controller | Neither history importedView source coverage → |
| Lovitt Gravel PitConverse, WYNear GlenrockMSHA 4801649 | Construction Sand and GravelSurface | AbandonedStatus date: 08/13/2019 | Converse CountyReported operatorConverse County-WYReported controller | Production / employmentSafety recordsView source coverage → |
| L-S Ten Sleep PitWashakie, WYNear Ten SleepMSHA 4801744 | Construction Sand and GravelSurface | AbandonedStatus date: 11/22/2022 | L J Mascaro IncReported operatorLeland J Mascaro; Sheri D MascaroReported controller | Production / employmentSafety recordsView source coverage → |
| Lucerne MineHot Springs, WYNear ThermoplisMSHA 4801188 | Common Clays NECSurface | AbandonedStatus date: 09/14/1988 | Wyo-Ben IncReported operatorDavid BrownReported controller | Neither history importedView source coverage → |
| Lucite #1Sweetwater, WYMSHA 4801460 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 05/01/1987 | Lucite IncReported operatorBobo EdgarReported controller | Neither history importedView source coverage → |
| Lucky Mc 7b UndergroundFremont, WYMSHA 4800855 | Uranium OreUnderground | AbandonedStatus date: 04/11/1988 | Pathfinder Mines CorpReported operatorCogema S AReported controller | Neither history importedView source coverage → |
| Lucky Mc Mill OperationsFremont, WYMSHA 4800861 | Uranium OreFacility | AbandonedStatus date: 07/27/1988 | Pathfinder Mines CorpReported operatorCogema S AReported controller | Neither history importedView source coverage → |
| Lucky Mc Mine MaintenanceFremont, WYMSHA 4801391 | Uranium OreSurface | AbandonedStatus date: 07/27/1988 | Pathfinder Mines CorpReported operatorCogema S AReported controller | Neither history importedView source coverage → |
| Lucky Mc Mine OperationsFremont, WYMSHA 4800557 | Uranium OreSurface | AbandonedStatus date: 07/27/1988 | Pathfinder Mines CorpReported operatorCogema S AReported controller | Neither history importedView source coverage → |
| Lyle Faith QuarryLaramie, WYMSHA 4801054 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 10/31/1985 | Great Western Sugar CompanyReported operatorGreat Western United CorpReported controller | Neither history importedView source coverage → |
| Lynde Pit 1Campbell, WYNear GilletteMSHA 4801775 | Construction Sand and GravelSurface | AbandonedStatus date: 09/06/2022 | Lynde Scoria, LLCReported operatorDarryl Lynde; Rich LyndeReported controller | Production / employmentSafety recordsView source coverage → |
| MARK BROWNUinta, WYNear PORTABLEMSHA 4801576 | Construction Sand and GravelSurface | AbandonedStatus date: 08/08/2003 | Brown'S CrushingReported operatorMark BrownReported controller | Production / employmentSafety recordsView source coverage → |
| Marshall PitSheridan, WYMSHA 4801361 | Construction Sand and GravelSurface | AbandonedStatus date: 04/30/1985 | Reeves IncReported operatorAl Johnson Construction CompanyReported controller | Neither history importedView source coverage → |
| Marshall Pit #3Sheridan, WYMSHA 4801258 | Construction Sand and GravelSurface | AbandonedStatus date: 09/21/1979 | Gilpatrick Construction Company IncReported operatorRichard GilpatrickReported controller | Neither history importedView source coverage → |
| May PitPlatte, WYMSHA 4801238 | Construction Sand and GravelSurface | AbandonedStatus date: 10/17/1980 | Gilpatrick Construction Company IncReported operatorRichard GilpatrickReported controller | Neither history importedView source coverage → |
| Mccard Pit No 1Laramie, WYMSHA 4800773 | Construction Sand and GravelSurface | AbandonedStatus date: 07/16/1979 | Mc Card Sand & Gravel CompanyReported operatorMc Card Sand & Gravel CompanyReported controller | Neither history importedView source coverage → |
| McCloskey S250 PortableGoshen, WYNear LaGrangeMSHA 0505020 | Construction Sand and GravelSurface | AbandonedStatus date: 07/02/2026 | Western Proppants, LLCReported operatorRobert Patrick Dietzler; John Patrick Dietzler; Daniel Patrick DietzlerReported controller | Production / employmentSafety recordsView source coverage → |
| Mc Garvin-Moberly Construction CompanyFremont, WYMSHA 4801184 | Construction Sand and GravelSurface | AbandonedStatus date: 12/16/1982 | Mc Garvin-Moberly Construction CompanyReported operatorHarry MoberlyReported controller | Neither history importedView source coverage → |
Use the mine name and reported location to investigate county parcel and title records, mineral rights, access and planning constraints. MSHA mailing addresses are addresses of record and may not locate the mine. Confirm the parcel and current ownership separately.
EPA mine-site redevelopment primer ↗Check official reclamation inventories and state or tribal programmes for documented hazards, project status and programme criteria. A matching name or an MSHA abandoned status alone does not confirm a programme match.
OSMRE abandoned mine land programme ↗Source: MSHA public datasets. Production history checks quarterly and annual mine production/employment records. Safety history checks violations, inspections and accident reports; other source coverage is available on each mine profile.