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Data / Mines / Utah

Mines in Utah: 306 open mines and MSHA citations

MSHA lists 306 open mines in Utah, run by 181 operators and employing 4,573 people. Since January 1, 2022 its inspectors issued 11,045 citations and orders there with $8,917,986 in proposed penalties, and operators reported 584 injury or illness cases, 2 of them fatal. The operators with the most open mines are Staker & Parson Companies; Arizona Materials; Geneva Rock Products Inc. Data from MSHA, November 6, 2026.

SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.

Open mines
306
Operators
181
Employees
4,573
Active
150
Intermittent
120
Temporarily Idled
27
New Mine
5
NonProducing
4
Mines run by individuals, counted and not listed
27
Citations and orders since January 1, 2022
11,045
Significant and substantial
1,696 (15.4%)
Closure orders
231
High negligence or reckless
925
Proposed penalties
$8,917,986
Amount paid so far
$6,469,283
Inspections
2,786
Inspector hours on site
60,366
Citations per inspection
3.96 (all mines 2.30)
Accident reports
635
Injury and illness cases
584
Fatalities
2
Latest MSHA record
November 5, 2026

Operators with the most open mines in Utah

Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.

OperatorOpen minesEmployeesCitations since 2022Proposed penaltiesInjury cases
Staker & Parson Companies23178441$438,90527
Arizona Materials1664339$211,92321
Geneva Rock Products Inc13144179$95,06219
Sunroc Corporation84666$12,2072
Burningham Enterprises Inc51037$6,9411
Canyon Fuel Company Llc45392,135$2,366,50474
TM Crushing, LLC424106$69,4773
Interstate Rock Products Inc41644$8,2360
Brown Brothers Construction4429$4,1470
Kennecott Utah Copper LLC31,140906$871,192111
CMC Rock, LLC325122$123,6779
American Gilsonite Company3104100$18,79722
Star Stone Quarries3935$6,8690
Holliday Construction Inc31314$2,0440
Bolinder Resources3612$2,1020
Ames Construction Inc3610$1,4220
Ash Grove Cement Company2102106$93,71313
Rupp Trucking Enterprises Inc2585$44,8021
Efr Colorado Plateau LLC24563$10,0296
Maverick Crushing, LLC2461$40,1790
Progressive Contracting Inc21560$28,0551
Mel Clark Inc.2759$12,1440
Amp Processing, LLC2445$19,3577
Wardell Brothers Construction Inc2742$11,5610
Landis Construction LLC2434$12,4781
Ares Strategic Mining Inc.2428$4,1501
Wildcat Sand LLC21828$3,3990
KW Crushing2623$5,1721
Bryce Christensen Excavating Inc2522$3,5191
Granite Construction Company2421$2,7000
Mountain Valley Stone, Inc.22721$2,8178
Oak Creek Rock Products, LLC2421$12,8120
Western Construction Materials LLC2420$2,8610
Western Rock Products21820$3,1233
TSJ Construction2719$2,8551
Broken Arrow Inc2413$2,2671
Stone Plus Inc239$1,7770
Bhi2128$1,5711
Crowley Construction, Inc258$1,1820
Dutson Supply Company Inc248$1,1860
Sanpete County Road Department245$7070
Table Rock Minerals LLC265$7372
Anfield Resources Holding Corp.250$00
Wind River Excavation Inc.200$00
Altius Construction LLC1101,340$1,154,07823
Emery Valley Resources, LLC.11391,333$1,690,31742
Fossil Rock Resources, LLC.1254259$89,19710
Graymont Western US Inc174163$83,31710
Tintic Consolidated Metals LLC170125$194,5068
Rulon Harper Construction, Inc1292$135,5690
Milford Mining Company Utah, LLC1290$71,4907
Desert Hawk Gold Corp1479$52,8572
Holcim (US) Incorporated111573$29,0355
Kenny Seng Construction, Inc.1761$46,2194
Materion Natural Resources18055$15,4398
S & L Inc1254$41,7689
StoneRiver Materials1253$23,9511
Applied Minerals, Inc.1545$13,7341
Utah Iron, LLC110445$38,81110
Marriott Rock Products1244$59,0950
Redmond Minerals, Inc.19044$7,8145
Utah Sand And Gravel1544$15,6040
Alton Coal Development LLC1842$12,0376
Dunn Construction, LC1342$62,7710
Aggregate Industries SWR, Inc.13039$42,3243
Miracle Rock Mining11637$7,1140
Adobe Rock Products LLC11036$5,0460
Ashdown Brothers Construction, Inc1735$6,6550
North Slope Crushing, LLC1535$25,7080
Simplot Phosphates LLC114033$5,68713
Western Clay, a Redmond LLC15033$7,5617
Lakeview Rock Products, Inc.12331$9,0553
Efr White Mesa LLC18929$4,48713
CKC Asphalt1427$4,7791
Diamond K Gypsum Inc12527$4,2995
Iron Mtn Rock Products1226$4,6840
Kanab Coal and Rock Products1225$7,8890
Martin Marietta Materials, Inc.1925$7,0841
Savage Services Corporation11425$4,1262
Cedar Mountain Materials, LLC1423$5,9750
Harward and Rees1322$4,8530
David L. Murray Trust1221$8,3250
Renewable Soils LLC1221$3,2070
Castle Valley Stone, LLC1820$3,4035
Lamb Excavating Inc1619$4,0420
Bedrock Sand and Gravel1918$3,4840
Summit Rock LLC1218$00
Allen Rock Products1416$3,2700
Skyview Excavation & Grading Inc1216$3,0340
Bonneville Quarries1215$2,9760
Gunlock Rock1215$2,1600
Whitaker Construction1215$1,7780
Bryce Valley Builders1714$2,0740
VanCon, Inc.1214$2,2170
Grover Excavation Inc1113$2,1180
Hunter Prep Plant, LLC11913$3,5930
Inntelex LLC1213$2,4570
United States Gypsum Company1813$2,3580
Bullhead Sand & Gravel, Inc.1212$1,7780
Grundy Concrete1212$1,5630

Operators with the most citations in Utah

Citations and orders issued since January 1, 2022 at their open mines here.

OperatorOpen minesEmployeesCitations since 2022Proposed penaltiesInjury cases
Canyon Fuel Company Llc45392,135$2,366,50474
Altius Construction LLC1101,340$1,154,07823
Emery Valley Resources, LLC.11391,333$1,690,31742
Kennecott Utah Copper LLC31,140906$871,192111
Staker & Parson Companies23178441$438,90527
Arizona Materials1664339$211,92321
Fossil Rock Resources, LLC.1254259$89,19710
Geneva Rock Products Inc13144179$95,06219
Graymont Western US Inc174163$83,31710
Tintic Consolidated Metals LLC170125$194,5068
CMC Rock, LLC325122$123,6779
TM Crushing, LLC424106$69,4773
Ash Grove Cement Company2102106$93,71313
American Gilsonite Company3104100$18,79722
Rulon Harper Construction, Inc1292$135,5690
Milford Mining Company Utah, LLC1290$71,4907
Rupp Trucking Enterprises Inc2585$44,8021
Desert Hawk Gold Corp1479$52,8572
Holcim (US) Incorporated111573$29,0355
Sunroc Corporation84666$12,2072
Efr Colorado Plateau LLC24563$10,0296
Maverick Crushing, LLC2461$40,1790
Kenny Seng Construction, Inc.1761$46,2194
Progressive Contracting Inc21560$28,0551
Mel Clark Inc.2759$12,1440
Materion Natural Resources18055$15,4398
S & L Inc1254$41,7689
StoneRiver Materials1253$23,9511
Amp Processing, LLC2445$19,3577
Applied Minerals, Inc.1545$13,7341

Mines with the most citations

Open mines, ranked by citations and orders since January 1, 2022.

MineOperatorCountyMain commodityEmployeesCitations since 2022
Gentry Mine #3Altius Construction LLCEmery County, UTCoal (bituminous)101,340
Emery Valley MineEmery Valley Resources, LLC.Emery County, UTCoal (bituminous)1391,333
Skyline Mine #3Canyon Fuel Company LlcCarbon County, UTCoal (bituminous)971,130
SufcoCanyon Fuel Company LlcSevier County, UTCoal (bituminous)419995
Bingham Canyon MineKennecott Utah Copper LLCSalt Lake County, UTCopper ore876487
Copperton ConcentratorKennecott Utah Copper LLCSalt Lake County, UTCopper ore233385
Fossil Rock MineFossil Rock Resources, LLC.Emery County, UTCoal (bituminous)254259
Cricket Mountain Plant & QuarryGraymont Western US IncMillard County, UTLime74163
TrixieTintic Consolidated Metals LLCUtah County, UTGold ore70125
Beck StreetStaker & Parson CompaniesSalt Lake County, UTConstruction sand and gravel26102
South PelicanCMC Rock, LLCUtah County, UTConstruction sand and gravel2197
Pit 12Rulon Harper Construction, IncTooele County, UTConstruction sand and gravel292
Ok and Hidden TreasureMilford Mining Company Utah, LLCBeaver County, UTCopper ore290
Kiewit MineDesert Hawk Gold CorpTooele County, UTGold ore479
Leamington Cement PlantAsh Grove Cement CompanyJuab County, UTCement10077
Amrize Devil's Slide PlantHolcim (US) IncorporatedMorgan County, UTCement11573
Pisgah AggsStaker & Parson CompaniesCache County, UTCrushed, broken limestone772
La Sal ComplexEfr Colorado Plateau LLCSan Juan County, UTUranium ore4563
Talons CoveTM Crushing, LLCUtah County, UTConstruction sand and gravel1561
Portable, Crushing Plant/AMI ThunderbirdKenny Seng Construction, Inc.Utah County, UTConstruction sand and gravel761
Ekins #2Maverick Crushing, LLCUtah County, UTConstruction sand and gravel259
Materion Natural ResourcesMaterion Natural ResourcesMillard County, UTBeryl-beryllium ore8055
Gray Cliffs PortableS & L IncUtah County, UTConstruction sand and gravel254
ErdaStoneRiver MaterialsTooele County, UTConstruction sand and gravel253
Bluffdale PitArizona MaterialsUtah County, UTConstruction sand and gravel352
Hansen PitGeneva Rock Products IncSalt Lake County, UTConstruction sand and gravel6249
Rupps Gravel ProductRupp Trucking Enterprises IncBox Elder County, UTConstruction sand and gravel348
Parley's StoneArizona MaterialsSalt Lake County, UTConstruction sand and gravel847
Bonanza MinesAmerican Gilsonite CompanyUintah County, UTGilsonite7046
Brigham City PitStaker & Parson CompaniesBox Elder County, UTConstruction sand and gravel1046
Comstock / Mountain LionUtah Iron, LLCIron County, UTIron ore10445
Portable #4Progressive Contracting IncIron County, UTGypsum1345
Dragon MineApplied Minerals, Inc.Juab County, UTCommon clays545
Redmond Minerals Salt MinesRedmond Minerals, Inc.Sevier County, UTSalt9044
North Salt Lake MineUtah Sand And GravelSalt Lake County, UTConstruction sand and gravel544
Cragun PitMarriott Rock ProductsWeber County, UTConstruction sand and gravel244
Coal Hollow MineAlton Coal Development LLCKane County, UTCoal (bituminous)842
5 Mile CrusherDunn Construction, LCTooele County, UTConstruction sand and gravel342
Amrize Utelite SiteAggregate Industries SWR, Inc.Summit County, UTCommon shale3039
Highland PitArizona MaterialsUtah County, UTConstruction sand and gravel1039
Four Mile ComplexAmp Processing, LLCJuab County, UTMisc. nonmetallic mnls.238
Lehi Point EastStaker & Parson CompaniesSalt Lake County, UTConstruction sand and gravel3037
Rockland MineMiracle Rock MiningEmery County, UTCommon shale1637
GlenwoodTM Crushing, LLCSalt Lake County, UTConstruction sand and gravel537
Jensen PitRupp Trucking Enterprises IncBox Elder County, UTConstruction sand and gravel237
Adobe Rock -Erda PitAdobe Rock Products LLCTooele County, UTConstruction sand and gravel1036
Ashdown PitAshdown Brothers Construction, IncIron County, UTConstruction sand and gravel735
Portable 1North Slope Crushing, LLCSummit County, UTConstruction sand and gravel535
Kennecott Keystone UndergroundKennecott Utah Copper LLCSalt Lake County, UTCopper ore3134
Vernal Pit & MillSimplot Phosphates LLCUintah County, UTPhosphate rock14033
Western Clay, a Redmond LLCWestern Clay, a Redmond LLCSevier County, UTCommon clays5033
Bulldog PitMel Clark Inc.Iron County, UTConstruction sand and gravel333
Lakeview Rock Products, Inc.Lakeview Rock Products, Inc.Salt Lake County, UTConstruction sand and gravel2331
Bonanza Process PlantAmerican Gilsonite CompanyUintah County, UTGilsonite2430
White Mesa MillEfr White Mesa LLCSan Juan County, UTUranium ore8929
Wardell Brothers Construction-DHWardell Brothers Construction IncMorgan County, UTConstruction sand and gravel529
Ash Grove Tooele PlantAsh Grove Cement CompanyTooele County, UTMisc. nonmetallic mnls.229
Mona PitArizona MaterialsJuab County, UTConstruction sand and gravel528
Wildcat Sand PlantWildcat Sand LLCUintah County, UTSand, common228
Chalk Hills QuarryDiamond K Gypsum IncEmery County, UTGypsum2527
Moon PitCKC AsphaltDuchesne County, UTConstruction sand and gravel427
Temple View PitMel Clark Inc.Iron County, UTConstruction sand and gravel426
Bauer PitStaker & Parson CompaniesTooele County, UTConstruction sand and gravel226
Smith PitIron Mtn Rock ProductsIron County, UTConstruction sand and gravel226
Brown Brothers ConstructionBrown Brothers ConstructionKane County, UTConstruction sand and gravel126
Savage Coal TerminalSavage Services CorporationCarbon County, UTCoal (bituminous)1425
Milford QuarryMartin Marietta Materials, Inc.Beaver County, UTCrushed, broken stone925
Heber QuarryStar Stone QuarriesWasatch County, UTConstruction sand and gravel525
Skutumpah PitKanab Coal and Rock ProductsKane County, UTConstruction sand and gravel225
Quality PitSunroc CorporationIron County, UTConstruction sand and gravel1524
South Weber PitGeneva Rock Products IncDavis County, UTConstruction sand and gravel1224
Cottonwood MinesAmerican Gilsonite CompanyUintah County, UTGilsonite1024
Hyrum PitArizona MaterialsCache County, UTConstruction sand and gravel724
BenjaminArizona MaterialsUtah County, UTConstruction sand and gravel624
Mt Jordan PitGeneva Rock Products IncSalt Lake County, UTConstruction sand and gravel2223
South Weber PitStaker & Parson CompaniesDavis County, UTConstruction sand and gravel1723
Eagle Pit Portable #1Cedar Mountain Materials, LLCGarfield County, UTConstruction sand and gravel423
Little MountainArizona MaterialsBox Elder County, UTConstruction sand and gravel223
Red DomeBurningham Enterprises IncJuab County, UTGypsum223
Grantsville PitArizona MaterialsTooele County, UTConstruction sand and gravel223
Stockton PitArizona MaterialsTooele County, UTConstruction sand and gravel422
5M PortableInterstate Rock Products IncWashington County, UTConstruction sand and gravel322
Portable Plant 2Harward and ReesIron County, UTConstruction sand and gravel322
Beef HollowStaker & Parson CompaniesSalt Lake County, UTConstruction sand and gravel721
David L. Murray TrustDavid L. Murray TrustUintah County, UTConstruction sand and gravel221
Renewable SoilsRenewable Soils LLCSummit County, UTConstruction sand and gravel221
Browns Canyon QuarryCastle Valley Stone, LLCSummit County, UTDimension sandstone820
West ValleyArizona MaterialsSalt Lake County, UTConstruction sand and gravel220
Oak Creek PortableOak Creek Rock Products, LLCMillard County, UTCrushed, broken sandstone220
Lamb PortableLamb Excavating IncKane County, UTConstruction sand and gravel619
Brigham PitArizona MaterialsBox Elder County, UTConstruction sand and gravel419
Lost Sheep MineAres Strategic Mining Inc.Juab County, UTFluorspar219
Nebo PitStaker & Parson CompaniesJuab County, UTConstruction sand and gravel219
Blue Hills Gravel PitLandis Construction LLCBox Elder County, UTConstruction sand and gravel219
BedrockBedrock Sand and GravelBox Elder County, UTConstruction sand and gravel918
Summit RockSummit Rock LLCIron County, UTConstruction sand and gravel218
Keigley QuarryStaker & Parson CompaniesUtah County, UTCrushed, broken stone2217
5M PitInterstate Rock Products IncWashington County, UTConstruction sand and gravel517
TSJ Crusher #1TSJ ConstructionEmery County, UTConstruction sand and gravel417
Salem PitGeneva Rock Products IncUtah County, UTConstruction sand and gravel217

Counties

CountyOpen mines
Utah County27
Salt Lake County25
Washington County20
Box Elder County20
Tooele County19
Iron County18
Emery County16
Duchesne County16
Millard County15
Sanpete County15
Uintah County14
Juab County13
San Juan County12
Sevier County11
Carbon County10
Summit County8
Kane County7
Garfield County7
Morgan County6
Cache County5
Wasatch County5
Davis County3
Beaver County3
Wayne County3
Weber County3
Grand County2
Piute County1
Rich County1
Daggett County1

Mines by kind

KindOpen mines
Sand and gravel212
Nonmetal31
Stone27
Metal15
Coal14

Main commodities

Citations and injury cases by year

Calendar years since 2022; 2026 runs to the date of the MSHA files.

YearCitations and ordersSignificant and substantialProposed penaltiesInjury and illness cases
20222,001295$1,475,489101
20232,650461$2,828,278112
20242,373364$2,487,568123
20252,476397$1,521,368143
20261,545179$605,283105

Standards cited most at mines in Utah

Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.

StandardWhat the part coversCitations
30 CFR 56.14107Surface metal and nonmetal mines585
30 CFR 75.400Underground coal mines, safety521
30 CFR 56.14100Surface metal and nonmetal mines437
30 CFR 56.12004Surface metal and nonmetal mines434
30 CFR 56.12032Surface metal and nonmetal mines363
30 CFR 75.333Underground coal mines, safety355
30 CFR 50.30Reporting of accidents, injuries and illnesses278
30 CFR 75.1731Underground coal mines, safety266
30 CFR 75.370Underground coal mines, safety264
30 CFR 56.14132Surface metal and nonmetal mines256
30 CFR 75.512Underground coal mines, safety239
30 CFR 56.4201Surface metal and nonmetal mines234
30 CFR 56.14112Surface metal and nonmetal mines191
30 CFR 75.503Underground coal mines, safety182
30 CFR 75.380Underground coal mines, safety179

Injury and illness cases at mines in Utah

Accident reports by degree of injury, as the operator reported them to MSHA.

DegreeCases
Fatality2
Permanent disability5
Days away from work or restricted activity316
No lost time, or an occupational illness261

What the accident reports at mines in Utah describe

Accident classification, as MSHA codes the circumstances that contributed most directly.

ClassificationReports
Handling of materials181
Slip or fall of person104
Machinery95
Handtools (nonpowered)85
Powered haulage57
Fall of roof or back33
Other16
Stepping or kneeling on object12
Electrical7
Striking or bumping5

Equipment named in accident reports at mines in Utah

EquipmentReports
Hand tools (not powered)84
Hand tools (powered)30
Ore haulage trucks - off highway trucks24
Front-end loader19
Bulldozer13
Rock or roof bolting machine11
Mancar11
Shovel10
Trucks9
Forklift8

Updated November 6, 2026. Read from US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets. US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.