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 |
|---|---|---|---|---|
| Kendall Gravel PitSublette, WYNear CoraMSHA 4801885 | Construction Sand and GravelSurface | AbandonedStatus date: 10/11/2024 | Black Mesa Advanced FissionReported operatorJoshua Payne; Joseph Cammans; Kent PayneReported controller | Production / employmentView source coverage → |
| Kerbs PitCarbon, WYNear BaggsMSHA 4801917 | Construction Sand and GravelSurface | AbandonedStatus date: 09/18/2026 | Valley Ready-Mix, LLCReported operatorTrevor N KaislerReported controller | Neither history importedView source coverage → |
| K-Fuel Pilot PlantCampbell, WYNear GilletteMSHA 4801479 | Coal (Bituminous)Facility | AbandonedStatus date: 07/23/1992 | Energy Brothers Technology IncReported operatorThermo Electron CorpReported controller | Neither history importedView source coverage → |
| Kfx MineCampbell, WYNear GilletteMSHA 4801531 | Coal (Bituminous)Surface | AbandonedStatus date: 10/20/1998 | Kfx Wyoming IncReported operatorThermo Electron CorpReported controller | Neither history importedView source coverage → |
| Kfx Raw Coal FacilityCampbell, WYNear Gillette, WyMSHA 4801545 | Coal (Bituminous)Facility | AbandonedStatus date: 07/10/2000 | Kfx Fuel Partners L PReported operatorThermo Electron CorpReported controller | Production / employmentView source coverage → |
| Kirwin ProjectPark, WYMSHA 4800189 | Copper Ore NECSurface | AbandonedStatus date: 03/08/1978 | C-M IncReported operatorC-M IncReported controller | Neither history importedView source coverage → |
| Kjilbertson PitUinta, WYMSHA 4801170 | Construction Sand and GravelSurface | AbandonedStatus date: 05/08/1978 | Kjilbertson Construction CoReported operatorKjilbertson Construction CoReported controller | Neither history importedView source coverage → |
| Kleeman MR130 Crusher #1Sweetwater, WYNear WamsutterMSHA 4801909 | Construction Sand and GravelSurface | AbandonedStatus date: 09/23/2026 | Cowboy Gravel Inc.Reported operatorStephen A FritzReported controller | Neither history importedView source coverage → |
| Kohlberg #1Washakie, WYNear WorlandMSHA 4801838 | Construction Sand and GravelSurface | AbandonedStatus date: 08/11/2021 | Swing Trucking Inc.Reported operatorDaniel BertschReported controller | Production / employmentSafety recordsView source coverage → |
| Kolberg 130-50Fremont, WYNear duboisMSHA 4801739 | Construction Sand and GravelSurface | AbandonedStatus date: 08/06/2010 | Dick Stock ContractingReported operatorDick R StockReported controller | Production / employmentSafety recordsView source coverage → |
| Kolberg Portable ScreenNatrona, WYNear casperMSHA 4801421 | Construction Sand and GravelSurface | AbandonedStatus date: 05/05/2021 | 71 ConstructionReported operatorSteve LoftinReported controller | Production / employmentSafety recordsView source coverage → |
| Kunau PitLaramie, WYMSHA 4801232 | Construction Sand and GravelSurface | AbandonedStatus date: 10/17/1980 | Gilpatrick Construction Company IncReported operatorRichard GilpatrickReported controller | Neither history importedView source coverage → |
| Labarge Pit Or Underpass PitSweetwater, WYMSHA 4800819 | Construction Sand and GravelSurface | AbandonedStatus date: 02/16/1982 | Mc Garvin-Moberly Construction CompanyReported operatorHarry MoberlyReported controller | Neither history importedView source coverage → |
| Labarge Road PitSweetwater, WYMSHA 4801245 | Construction Sand and GravelSurface | AbandonedStatus date: 07/10/1985 | Sunrise Construction Company IncReported operatorNauman Lawrence-Ethel & BuddyReported controller | Neither history importedView source coverage → |
| Lake RanchCrook, WYNear GilletteMSHA 4801793 | Construction Sand and GravelSurface | AbandonedStatus date: 11/09/2021 | Earth Work Solutions (WY)Reported operatorTyler Miller; Tom MillerReported controller | Production / employmentSafety recordsView source coverage → |
| Lamb Crusher No 1Goshen, WYMSHA 4801310 | Construction Sand and GravelSurface | AbandonedStatus date: 12/10/1991 | Lamb Construction CompanyReported operatorLamb Larry NReported controller | Neither history importedView source coverage → |
| Lamb Crusher No 2Goshen, WYMSHA 4801311 | Construction Sand and GravelSurface | AbandonedStatus date: 02/28/1984 | Lamb Construction CompanyReported operatorLamb Larry NReported controller | Neither history importedView source coverage → |
| Lamb PrimaryGoshen, WYMSHA 4801312 | Construction Sand and GravelSurface | AbandonedStatus date: 12/12/1991 | Lamb Construction CompanyReported operatorLamb Larry NReported controller | Neither history importedView source coverage → |
| Lander PitFremont, WYMSHA 4801398 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 02/28/1984 | Peter Kiewit Sons' CompanyReported operatorPeter Kiewit Sons' IncReported controller | Neither history importedView source coverage → |
| LARAMIE NO 1Laramie, WYMSHA 4801486 | Construction Sand and GravelSurface | AbandonedStatus date: 09/21/1998 | Wyoming Asphalt Concrete & Grav Co Inc/Stc ConstReported operatorOlsen Chris RReported controller | Neither history importedView source coverage → |
| Laramie QuarryAlbany, WYMSHA 4801441 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 12/06/1985 | C & M Ready MixReported operatorKoppers Company IncReported controller | Neither history importedView source coverage → |
| Larry's, Inc.Johnson, WYNear GilletteMSHA 4801567 | Construction Sand and GravelSurface | AbandonedStatus date: 05/06/2003 | Larrys, IncReported operatorLarry F Suchor; Joe SuchorReported controller | Production / employmentSafety recordsView source coverage → |
| Lathrop L-3 PitNatrona, WYMSHA 4801140 | Construction Sand and GravelSurface | AbandonedStatus date: 06/19/1981 | Falcon ConcreteReported operatorPeterson ClaytonReported controller | Neither history importedView source coverage → |
| Layos Pit 564Sweetwater, WYNear Green RiverMSHA 4801671 | Construction Sand and GravelSurface | AbandonedStatus date: 09/23/2025 | Suncore Construction and Materials Inc. Reported operatorCCI (Clyde Companies Inc)Reported controller | Production / employmentSafety recordsView source coverage → |
| L C'S FortuneConverse, WYMSHA 4801457 | FeldsparSurface | AbandonedStatus date: 12/18/1987 | Rambo Mining CompanyReported operatorDoerr Leonard C & R E RobinsonReported controller | Neither history importedView source coverage → |
| Le Bar Gravel PitConverse, WYMSHA 4801216 | Construction Sand and GravelSurface | AbandonedStatus date: 06/17/1981 | Thatcher & Sons IncReported operatorThatcher DavidReported controller | Neither history importedView source coverage → |
| Leefe OperationsLincoln, WYMSHA 4800160 | Phosphate RockFacility | AbandonedStatus date: 12/31/1986 | Stauffer Chemical CompanyReported operatorUnilever United States IncReported controller | Neither history importedView source coverage → |
| Leucite HillsSweetwater, WYMSHA 4801338 | Construction Sand and GravelSurface | AbandonedStatus date: 07/19/1984 | Pacific Minerals IncReported operatorPacificorp (Now: Mid-American Energy Hldgs-C02046)Reported controller | Neither history importedView source coverage → |
| Leucite Hills MineSweetwater, WYNear Point Of RocksMSHA 4801121 | Coal (Bituminous)Surface | Abandoned and SealedStatus date: 07/28/1988 | Black Butte Coal CompanyReported operatorLighthouse Resources Inc; Anadarko Petroleum CorporationReported controller | Neither history importedView source coverage → |
| Leuenberger ProjectConverse, WYMSHA 4801301 | Uranium-Vanadium OreFacility | AbandonedStatus date: 05/03/1982 | Unc-Teton-Nedco JvReported operatorUnc-Teton-Nedco JvReported 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.