| Lone StarOkanogan, WAMSHA 4502032 | Silver OreUnderground | AbandonedStatus date: 09/05/1981 | Belgarde MiningReported operatorBelgarde MiningReported controller | Neither history importedView source coverage → |
| Lone Star MineFerry, WAMSHA 4502433 | Copper Ore NECSurface | AbandonedStatus date: 01/26/1979 | Lone Star Mining CorpReported operatorLone Star Mining CorpReported controller | Neither history importedView source coverage → |
| Looker Prop. So. Canyon Pit PortablePierce, WANear PuyallupMSHA 4503562 | Construction Sand and GravelSurface | AbandonedStatus date: 10/15/2007 | Randle's Sand & Gravel Inc.Reported operatorDavid G RandlesReported controller | Production / employmentSafety recordsView source coverage → |
| LOOKOUT RIDGEClark, WAMSHA 4503435 | Crushed, Broken Stone NECSurface | AbandonedStatus date: 06/29/2001 | Steve Smith Construction IncReported operatorSteven F SmithReported controller | Safety recordsView source coverage → |
| Loon Lake QuarryStevens, WAMSHA 4502923 | Barite Barium OreSurface | AbandonedStatus date: 08/09/1982 | Tri-H Mining Company IncReported operatorHurn RonaldReported controller | Neither history importedView source coverage → |
| LOON LAKE SAND & GRAVELStevens, WANear Loon LakeMSHA 4502509 | Construction Sand and GravelSurface | AbandonedStatus date: 08/21/2015 | Loon Lake Sand & Gravel LLCReported operatorSteve HermanReported controller | Production / employmentSafety recordsView source coverage → |
| Lopez Ready Mix Pit & PlantSan Juan, WAMSHA 4502404 | Construction Sand and GravelSurface | AbandonedStatus date: 07/13/1990 | Lopez Ready MixReported operatorFarris Robert CReported controller | Neither history importedView source coverage → |
| Lopez Sand & Gravel PitSan Juan, WAMSHA 4502403 | Construction Sand and GravelSurface | AbandonedStatus date: 09/13/1993 | Lopez Sand & GravelReported operatorBuffum M R Jr & GaryReported controller | Neither history importedView source coverage → |
| Lost Lake PitMason, WAMSHA 4502464 | Construction Sand and GravelSurface | AbandonedStatus date: 02/01/1980 | Mason County Road DepartmentReported operatorMason CountyReported controller | Neither history importedView source coverage → |
| Lost QuarrySkamania, WAMSHA 4502594 | Crushed, Broken TraprockSurface | AbandonedStatus date: 02/12/1981 | Chelatchie Rock ProductsReported operatorSchwartz Dave & Roger OlsonReported controller | Neither history importedView source coverage → |
| Lovegren Gravel PitKitsap, WAMSHA 4502482 | Construction Sand and GravelSurface | AbandonedStatus date: 06/21/1985 | Blossom Construction CompanyReported operatorBlossom Michael L & Maurlen GReported controller | Neither history importedView source coverage → |
| Lovitt MineChelan, WANear WenatcheeMSHA 4503650 | Gold OreUnderground | AbandonedStatus date: 10/01/2012 | Lovitt Mining Co., Inc.Reported operatorLovitt Resources IncReported controller | Production / employmentSafety recordsView source coverage → |
| LowdenWalla Walla, WAMSHA 4503120 | Construction Sand and GravelSurface | AbandonedStatus date: 06/23/1993 | Ready Mix LtdReported operatorE O S IncReported controller | Neither history importedView source coverage → |
| Lowden PitWalla Walla, WAMSHA 4502731 | Construction Sand and GravelSurface | AbandonedStatus date: 12/29/1980 | Max J Kuney CompanyReported operatorKuney Max J CompanyReported controller | Neither history importedView source coverage → |
| Lower Goat Creek PitOkanogan, WAMSHA 4502817 | Construction Sand and GravelSurface | AbandonedStatus date: 01/12/1981 | Herriman Construction IncReported operatorHerriman CoyReported controller | Neither history importedView source coverage → |
| Lower North River PitPierce, WAMSHA 4502632 | Crushed, Broken TraprockSurface | AbandonedStatus date: 11/26/1979 | Weyerhaeuser CompanyReported operatorGeorge WeyerhaeuserReported controller | Neither history importedView source coverage → |
| Lower River Road PitClark, WAMSHA 4500646 | Construction Sand and GravelSurface | AbandonedStatus date: 04/30/1985 | Kampe Readymix IncReported operatorKampe Readymix IncReported controller | Neither history importedView source coverage → |
| Lucky Break MineSkamania, WAMSHA 4502963 | Gold OreUnderground | AbandonedStatus date: 04/02/1986 | Lucky Break Mining CompanyReported operatorKenneth O. JeterReported controller | Neither history importedView source coverage → |
| Lucky Seven PitStevens, WAMSHA 4502741 | Barite Barium OreSurface | AbandonedStatus date: 08/13/1981 | Herb Bakie Mining CompanyReported operatorHerb Bakie Mining CompanyReported controller | Neither history importedView source coverage → |
| Lummi Island QuarryWhatcom, WAMSHA 4502714 | Crushed, Broken TraprockSurface | AbandonedStatus date: 05/09/1985 | Robert CulbertsonReported operatorCulbertson RonaldReported controller | Neither history importedView source coverage → |
| LUMMI ISLAND QUARRYWhatcom, WANear LUMMIMSHA 4503187 | Crushed, Broken TraprockSurface | AbandonedStatus date: 11/13/2014 | Aggregates West IncReported operatorDavid GraingerReported controller | Production / employmentSafety recordsView source coverage → |
| Lund 15 QuarryGrays Harbor, WAMSHA 4502635 | Crushed, Broken TraprockSurface | AbandonedStatus date: 04/26/1985 | Weyerhaeuser CompanyReported operatorGeorge WeyerhaeuserReported controller | Neither history importedView source coverage → |
| Lux PitDouglas, WAMSHA 4502089 | Construction Sand and GravelSurface | AbandonedStatus date: 03/05/1979 | Douglas County Road DepartmentReported operatorDouglas County-WaReported controller | Neither history importedView source coverage → |
| Luzon PitKitsap, WAMSHA 4502400 | Construction Sand and GravelSurface | AbandonedStatus date: 02/28/1979 | Oicc TridentReported operatorOicc TridentReported controller | Neither history importedView source coverage → |
| Lyle PitKlickitat, WAMSHA 4502013 | Construction Sand and GravelSurface | AbandonedStatus date: 07/07/1978 | J K Sand & Gravel CompanyReported operatorJ K Sand & Gravel CompanyReported controller | Neither history importedView source coverage → |
| Lynch Road Gravel PitMason, WAMSHA 4501779 | Construction Sand and GravelSurface | AbandonedStatus date: 02/15/1979 | Simpson Timber CompanyReported operatorSimpson Timber CompanyReported controller | Neither history importedView source coverage → |
| Lynden Ready Mix Pit PlantWhatcom, WAMSHA 4500991 | Construction Sand and GravelSurface | AbandonedStatus date: 03/29/1988 | Lynden Ready Mix IncReported operatorJerry DoornenbalReported controller | Neither history importedView source coverage → |
| Lynnwood Pit And PlantSnohomish, WAMSHA 4500620 | Construction Sand and GravelSurface | AbandonedStatus date: 01/08/1979 | Lynnwood Sand & Gravel IncorporatReported operatorParry W LReported controller | Neither history importedView source coverage → |
| Lynwood Sand PitKitsap, WAMSHA 4502486 | Construction Sand and GravelSurface | AbandonedStatus date: 08/28/1979 | Clementz Construction CompanyReported operatorClementz BenReported controller | Neither history importedView source coverage → |
| Mahaffey QuarryKitsap, WAMSHA 4502271 | Crushed, Broken TraprockSurface | AbandonedStatus date: 06/28/1978 | Longview Fibre CompanyReported operatorWollenberg R PReported controller | Neither history importedView source coverage → |