| Howe PitAdams, CONear HendersonMSHA 0504099 | Construction Sand and GravelSurface | AbandonedStatus date: 10/01/2007 | Lafarge West IncorporatedReported operatorHolcim LtdReported controller | Production / employmentSafety recordsView source coverage → |
| Hubbard MineMesa, COMSHA 0502940 | Uranium OreUnderground | AbandonedStatus date: 06/22/1982 | Hubbard Mining CompanyReported operatorHubbard L L (Kelly) JrReported controller | Neither history importedView source coverage → |
| Hudick ConiferJefferson, CONear ConiferMSHA 0504979 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 07/01/2011 | Hudick Excavating IncReported operatorDaniel HudickReported controller | Production / employmentSafety recordsView source coverage → |
| Hudson PitEl Paso, COMSHA 0503247 | Construction Sand and GravelSurface | AbandonedStatus date: 07/24/1979 | El Paso County Dept Of TransportationReported operatorEl Paso County-CoReported controller | Neither history importedView source coverage → |
| Huffer PitMesa, COMSHA 0501950 | Construction Sand and GravelSurface | AbandonedStatus date: 04/23/1985 | Elam Construction IncReported operatorSummit Materials LLCReported controller | Neither history importedView source coverage → |
| Hugo PitLincoln, COMSHA 0504207 | Construction Sand and GravelSurface | AbandonedStatus date: 08/12/1996 | L G Everist IncReported operatorL G Everist IncReported controller | Neither history importedView source coverage → |
| Hukill Gulch MillsiteClear Creek, CONear Idaho SpringsMSHA 0504991 | Gold OreFacility | AbandonedStatus date: 05/10/2021 | Venture Resources IncReported operatorPatrick D MaherReported controller | Production / employmentSafety recordsView source coverage → |
| Hull MineTeller, COMSHA 0503688 | Gold OreUnderground | AbandonedStatus date: 04/18/1989 | Hull Mining CompanyReported operatorHull Jack JReported controller | Neither history importedView source coverage → |
| HumboltClear Creek, COMSHA 0503649 | Gold OreUnderground | AbandonedStatus date: 05/08/1991 | J & J Mining CompanyReported operatorLoudermilk James AReported controller | Neither history importedView source coverage → |
| Humming Bird MineMesa, CONear Grand JunctionMSHA 0505149 | AmethystSurface | AbandonedStatus date: 05/03/2022 | Miners Mall, LLCReported operatorDennis R SchneiderReported controller | Neither history importedView source coverage → |
| HYGIENEBoulder, COMSHA 0504453 | Construction Sand and GravelSurface | AbandonedStatus date: 01/10/2000 | Golden Gravel CompanyReported operatorStewart V GoldenReported controller | Neither history importedView source coverage → |
| Hygiene MineBoulder, COMSHA 0502650 | Construction Sand and GravelSurface | AbandonedStatus date: 06/05/1987 | Golden Gravel CompanyReported operatorStewart V GoldenReported controller | Neither history importedView source coverage → |
| Hygiene PitBoulder, COMSHA 0502648 | Construction Sand and GravelSurface | AbandonedStatus date: 06/19/1991 | Western Mobile IncReported operatorRedland PlcReported controller | Neither history importedView source coverage → |
| IDAHO CREEK GRAVEL COWeld, CONear DenverMSHA 0504478 | Construction Sand and GravelSurface | AbandonedStatus date: 11/13/2003 | Idaho Creek Gravel CompanyReported operatorWilliam KobobelReported controller | Production / employmentSafety recordsView source coverage → |
| IDAHO CREEK GRAVEL CO. INC. 11Weld, CONear LongmontMSHA 0504696 | Construction Sand and GravelSurface | AbandonedStatus date: 09/15/2006 | Idaho Creek Gravel CompanyReported operatorWilliam KobobelReported controller | Production / employmentSafety recordsView source coverage → |
| IDARADO MINEOuray, COMSHA 0500414 | Lead-Zinc OreUnderground | AbandonedStatus date: 02/14/2000 | Idarado Mining CompanyReported operatorNewmont CorporationReported controller | Production / employmentSafety recordsView source coverage → |
| Ignacio Gravel #2La Plata, COMSHA 0504045 | Construction Sand and GravelSurface | AbandonedStatus date: 06/04/1985 | Gosney & Sons IncReported operatorDon L GosneyReported controller | Neither history importedView source coverage → |
| Ignacio Vasquez SrBoulder, CONear LyonsMSHA 0504721 | Dimension SandstoneSurface | AbandonedStatus date: 08/12/2005 | Noland StoneReported operatorIgnacio Vasquez SrReported controller | Production / employmentSafety recordsView source coverage → |
| Ike #1San Miguel, COMSHA 0502789 | Uranium OreUnderground | AbandonedStatus date: 03/20/1981 | Anschutz Mining CorpReported operatorAnschutz CorpReported controller | Neither history importedView source coverage → |
| Impact CrusherPueblo, CONear PuebloMSHA 0504950 | Construction Sand and GravelSurface | AbandonedStatus date: 10/01/2013 | Rocky Mountain Materials & Asphalt, IncReported operatorStephen SchnurrReported controller | Production / employmentSafety recordsView source coverage → |
| Impact Crusher La Plata, CONear ArbolesMSHA 0505017 | Construction Sand and GravelSurface | AbandonedStatus date: 12/08/2020 | Crossfire Aggregate Services LLCReported operatorEzra Eldon LeeReported controller | Production / employmentSafety recordsView source coverage → |
| ImperialWeld, COMSHA 0500306 | Coal (Bituminous)Underground | AbandonedStatus date: 05/10/1972 | Imperial Coal CompanyReported operatorBrennan GeorgeReported controller | Neither history importedView source coverage → |
| IncasLa Plata, COMSHA 0504222 | Gold OreUnderground | AbandonedStatus date: 04/22/1988 | Northern Minerals IncReported operatorNorthern Minerals IncReported controller | Neither history importedView source coverage → |
| Incas MineLa Plata, CONear MaydayMSHA 0504921 | Gold OreSurface | AbandonedStatus date: 07/16/2009 | Deadwood Gulch Mining CoReported operatorJames A BenderReported controller | Safety recordsView source coverage → |
| Independent TunnelClear Creek, COMSHA 0503747 | Gold OreUnderground | AbandonedStatus date: 01/13/1984 | Aberford Minerals (Us) IncReported operatorAberford Resources LtdReported controller | Neither history importedView source coverage → |
| Ingleside QuarryLarimer, COMSHA 0503633 | Crushed, Broken Limestone NECSurface | AbandonedStatus date: 08/17/1983 | Ingleside QuarryReported operatorStute John RReported controller | Neither history importedView source coverage → |
| INGNACIO PITLa Plata, COMSHA 0504550 | Construction Sand and GravelSurface | AbandonedStatus date: 11/18/1998 | Mouache-Capote Construction CompanyReported operatorSouthern Ute Indian TribeReported controller | Neither history importedView source coverage → |
| Iron CladDolores, COMSHA 0502784 | Copper Ore NECUnderground | AbandonedStatus date: 03/09/1981 | Myron JonesReported operatorMyron JonesReported controller | Neither history importedView source coverage → |
| Iron CrownSan Miguel, COMSHA 0502609 | Gold OreSurface | AbandonedStatus date: 05/04/1978 | Spencer & SchooleyReported operatorSpencer & SchooleyReported controller | Neither history importedView source coverage → |
| IRON HAT QUARRYLake, COMSHA 0504652 | Construction Sand and GravelSurface | AbandonedStatus date: 08/14/2000 | Leadville Research & Development CorpReported operatorAllen K PhillipsReported controller | Production / employmentView source coverage → |