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States › Colorado
MSHA mine register by county

Mines in Weld County, Colorado

Weld County, Colorado has 156 mines on MSHA's register: 30 active, 9 intermittent, 116 abandoned. 4 are coal mines and 152 metal or non-metal. 2 miners have died and 486 accidents have been reported at these mines between 1983 and 2026. Inspectors have issued 3,579 citations.

Every mine MSHA has registered in Weld County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.

Abandoned and historical mine features in Weld County →

Mines on register
156
Active
30
Fatalities on record
2
Citations issued
3,579
3 underground · 153 surface · 0 facilities 4 coal · 152 metal and non-metal 9 intermittent 116 abandoned 486 reported accidents, 1983–2026

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Local economic context
ⓘ County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Weld County, Colorado · Population 340,711
2.4%
Mining share of county employment
$93,287
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
On the map 
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MSHA-registered mine, any status

Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.

Operators with the most mines herecurrent operator of record
Operator Mines Active Fatalities
Asphalt Specialties Co., Inc. 11 3 0
BURNCO Colorado LLC 11 3 0
Colorado Department Of Highways 9 0 0
L.G. Everist, Inc. 6 3 0
Varra Companies, Inc. 6 0 0
Amrize West Central Inc. 5 3 1
Martin Marietta Materials Inc 5 2 1
Weld County Road & Bridge Department 5 0 0
J-2 Contracting Co. 4 2 0
Weld County Public Works 4 0 0
Mines in Weld County156 on register
  1. Amrize Distel Plant
    Surface metal/non-metal · Amrize West Central Inc. · MSHA ID 0504476
    Active
  2. Riverbend Sand and Gravel
    Surface metal/non-metal · Martin Marietta Materials Inc · MSHA ID 0504841
    Active
  3. 115 WP
    Surface metal/non-metal · Raptor Materials LLC · MSHA ID 0504681
    Active
  4. FORT LUPTON SAND & GRAVEL
    Surface metal/non-metal · L.G. Everist, Inc. · MSHA ID 0501910
    Active
  5. Amrize Platte Valley Plant
    Surface metal/non-metal · Amrize West Central Inc. · MSHA ID 0504332
    Active
  6. Inouye Gravel Mine
    Surface metal/non-metal · BURNCO Colorado LLC · MSHA ID 0504615
    Active
  7. Portable Crusher #1
    Surface metal/non-metal · Connell Resources Inc · MSHA ID 0504194
    Active
  8. Portable Crusher #1
    Surface metal/non-metal · Mill Iron Mining · MSHA ID 0505015
    Active
  9. Parsons Sand and Gravel
    Surface metal/non-metal · Martin Marietta Materials · MSHA ID 0503215
    Active
  10. Keenesburg #2
    Surface metal/non-metal · Colorado Sand Company · MSHA ID 0505159
    Active
  11. Portable Crusher #2
    Surface metal/non-metal · Connell Resources Inc · MSHA ID 0504495
    Active
  12. North Weld Gravel Pit
    Surface metal/non-metal · C & H Excavation LLC · MSHA ID 0505101
    Active
  13. Ragsdale Reservoirs
    Surface metal/non-metal · L.G. Everist, Inc. · MSHA ID 0505138
    Active
  14. Bennett Pit
    Surface metal/non-metal · Northern Colorado Constructors, Inc. · MSHA ID 0504785
    Active
  15. Green/Croissant
    Surface metal/non-metal · Loveland Ready Mix Concrete Inc. · MSHA ID 0504753
    Active
  16. Amrize Scout Island
    Surface metal/non-metal · Amrize West Central Inc. · MSHA ID 0504862
    Active
  17. FIRESTONE GRAVEL RESOURCE
    Surface metal/non-metal · L.G. Everist, Inc. · MSHA ID 0505030
    Active
  18. Portable Plant 1
    Surface metal/non-metal · Laser Oilfield Services · MSHA ID 0505000
    Active
  19. Portable #2
    Surface metal/non-metal · Pine Bluffs Gravel & Excavating · MSHA ID 2501253
    Active
  20. Nissen Gravel Mine
    Surface metal/non-metal · BURNCO Colorado LLC · MSHA ID 0504915
    Active
  21. Hunt Water Res #2
    Surface metal/non-metal · J-2 Contracting Co. · MSHA ID 0505127
    Active
  22. Poudre Ponds Pit
    Surface metal/non-metal · J-2 Contracting Co. · MSHA ID 0505166
    Active
  23. Nelson Mining Resource
    Surface metal/non-metal · Asphalt Specialties Co., Inc · MSHA ID 0505132
    Active
  24. Portable Plant 2
    Surface metal/non-metal · Laser Oilfield Services · MSHA ID 0505048
    Active
  25. DENM
    Surface metal/non-metal · Monarch Mountain Minerals & Aggregates · MSHA ID 0505193
    Active
  26. VIP Mine
    Surface metal/non-metal · VIP Mine LLC · MSHA ID 0505171
    Active
  27. Chavers Mining Resource
    Surface metal/non-metal · Asphalt Specialties Co., Inc. · MSHA ID 0505043
    Active
  28. Ewing Gravel Pit
    Surface metal/non-metal · Burnco · MSHA ID 0505191
    Active
  29. Denver Rock
    Surface metal/non-metal · Denver Rock Company · MSHA ID 0505212
    Active
  30. Evans Sand and Gravel
    Surface metal/non-metal · Asphalt Specialties Co. · MSHA ID 0505204
    Active
  31. Carr Gravel Resource
    Surface metal/non-metal · L.G. Everist, Inc. · MSHA ID 0504441
    Abandoned
  32. Keenesburg Mine
    Surface coal · Coors Energy Company · MSHA ID 0503515
    Abandoned
  33. Bernhardt Gravel Mine
    Surface metal/non-metal · BURNCO Colorado LLC · MSHA ID 0504654
    Abandoned
  34. 117 WP
    Surface metal/non-metal · Raptor Materials LLC · MSHA ID 0503788
    Abandoned
  35. Carbon Valley Resource
    Surface metal/non-metal · L.G. Everist, Inc. · MSHA ID 0503707
    Abandoned
  36. Platte Sand and Gravel
    Surface metal/non-metal · Martin Marietta Materials · MSHA ID 0504418
    Intermittent
  37. R.J. Campbell's Pit #1
    Surface metal/non-metal · Suburban Sand & Gravel · MSHA ID 0504428
    Abandoned
  38. POWER SCREEN-0504614
    Surface metal/non-metal · Bestway Concrete & Aggregates · MSHA ID 0504614
    Abandoned
  39. 408 PTS
    Surface metal/non-metal · Varra Companies Inc · MSHA ID 0504042
    Abandoned
  40. PIT #28
    Surface metal/non-metal · Brannan Sand & Gravel Company LLC · MSHA ID 0503538
    Abandoned
  41. S & H Mine
    Surface metal/non-metal · Platte Sand & Gravel · MSHA ID 0504783
    Abandoned
  42. Pit 25-Morton Lakes
    Surface metal/non-metal · Ready Mixed Concrete Company · MSHA ID 0505046
    Intermittent
  43. Portable Plant #1
    Surface metal/non-metal · Hall-Irwin Corporation · MSHA ID 0504516
    Abandoned
  44. Perry Pit / Portable Wash Sand Plant
    Surface metal/non-metal · Asphalt Paving Company · MSHA ID 0504545
    Abandoned
  45. Portable Reclamation Crew
    Surface metal/non-metal · Weld County · MSHA ID 0504150
    Intermittent
  46. Firestone Gravel Mine
    Surface metal/non-metal · BURNCO Colorado LLC · MSHA ID 0504838
    Abandoned
  47. Bucklen Equipment Company Incorporated
    Surface metal/non-metal · Bucklen Equipment Company Incorporated · MSHA ID 0504040
    Intermittent
  48. CR-26
    Surface metal/non-metal · Asphalt Specialties Co Inc · MSHA ID 0504699
    Abandoned
  49. 35TH AVENUE PLANT
    Surface metal/non-metal · Camas Colorado Inc · MSHA ID 0503139
    Abandoned
  50. GOLDEN'S ANDESITE WINDSOR
    Surface metal/non-metal · Golden'S Andesite Mining Company · MSHA ID 0504479
    Abandoned
  51. Greeley 35th Sand and Gravel
    Surface metal/non-metal · Martin Marietta Materials · MSHA ID 0504613
    Abandoned
  52. 117 DP
    Surface metal/non-metal · Varra Companies, Inc. · MSHA ID 0501840
    Abandoned
  53. 2100 PTS
    Surface metal/non-metal · Varra Companies Inc · MSHA ID 0502846
    Abandoned
  54. RINN VALLEY RESOURCE
    Surface metal/non-metal · L.G. Everist, Inc. · MSHA ID 0504670
    Abandoned
  55. Aggregate Sand And Soil Incorporated
    Surface metal/non-metal · Aggregate Sand & Soil Inc · MSHA ID 0504056
    Abandoned
  56. HOLCIM Greeley Plant
    Surface metal/non-metal · Amrize West Central Inc. · MSHA ID 0504518
    Abandoned
  57. 115 DP
    Surface metal/non-metal · Varra Companies, Inc. · MSHA ID 0504759
    Abandoned
  58. ASCI CR 22
    Surface metal/non-metal · Asphalt Specialties Co Inc · MSHA ID 0504690
    Abandoned
  59. PORTABLE CRUSHER #2
    Surface metal/non-metal · Weld County · MSHA ID 0504540
    Intermittent
  60. 120 DP
    Surface metal/non-metal · VARRA COMPANIES INC · MSHA ID 0504643
    Abandoned
  61. Del Camino Pit
    Surface metal/non-metal · Western Paving Construction Company · MSHA ID 0503627
    Abandoned
  62. HERBST PIT
    Surface metal/non-metal · Hall-Irwin Construction Company · MSHA ID 0504450
    Abandoned
  63. Northern Portable Plant #19
    Surface metal/non-metal · Martin Marietta Materials · MSHA ID 0504382
    Abandoned
  64. City of Greeley Gravel Pit
    Surface metal/non-metal · Miller-HFI, LLC · MSHA ID 0504922
    Abandoned
  65. CR - 27
    Surface metal/non-metal · Asphalt Specialties Co., Inc · MSHA ID 0505051
    Abandoned
  66. Portable Screen # 3
    Surface metal/non-metal · Weld County Public Works · MSHA ID 0504909
    Abandoned
  67. Fort Lupton Pit
    Surface metal/non-metal · Pioneer Sand Company, Inc. · MSHA ID 0504894
    Abandoned
  68. Brighton Pit
    Surface metal/non-metal · South Platte Aggregates Inc · MSHA ID 0504141
    Abandoned
  69. Herbst Pit
    Surface metal/non-metal · Hall-Irwin Construction Company · MSHA ID 0504318
    Abandoned
  70. Williams Pit
    Surface metal/non-metal · C & M Aggregates Ltd · MSHA ID 0504477
    Abandoned
  71. CR 44
    Surface metal/non-metal · Asphalt Specialties · MSHA ID 0504798
    Abandoned
  72. Keenesburg Project
    Surface metal/non-metal · PAS Mining Solutions, LLC · MSHA ID 0505110
    Abandoned
  73. Turnpike - Wet Plant
    Surface metal/non-metal · Asphalt Specialties Co., Inc. · MSHA ID 0505044
    Abandoned
  74. ASCI CR 23
    Surface metal/non-metal · Asphalt Specialties Co Inc · MSHA ID 0504848
    Abandoned
  75. Loloff Pit
    Surface metal/non-metal · Richardson Consolidated Inc · MSHA ID 0504923
    Abandoned
  76. Portable Crusher 1
    Surface metal/non-metal · VESCO Consulting Services LLC · MSHA ID 0505022
    Abandoned
  77. Derr Pit
    Surface metal/non-metal · Broken Arrow Mining · MSHA ID 0504955
    Abandoned
  78. Del Camino Sand & Gravel Mine
    Surface metal/non-metal · Ready Mixed Concrete Company · MSHA ID 0504769
    Abandoned
  79. GREELEY EAST MINE
    Surface metal/non-metal · Aggregate Industries West Central Region Inc · MSHA ID 0504673
    Abandoned
  80. Larson Pit
    Surface metal/non-metal · Siegrist Construction Company · MSHA ID 0503988
    Abandoned
  81. M P M Greeley 35th Avenue
    Surface metal/non-metal · Sterling Sand & Gravel Company · MSHA ID 0500926
    Abandoned
  82. P C S Greeley Pit
    Surface metal/non-metal · Precision Cast Structures Inc · MSHA ID 0501014
    Abandoned
  83. PORTABLE SCREEN PLANT #2
    Surface metal/non-metal · Weld County · MSHA ID 0504151
    Abandoned
  84. Crusher 2
    Surface metal/non-metal · Extreme Excavation · MSHA ID 0505024
    Abandoned
  85. Portable Screen #158
    Surface metal/non-metal · Pioneer Sand Co., Inc. · MSHA ID 0504777
    Abandoned
  86. IDAHO CREEK GRAVEL CO
    Surface metal/non-metal · Idaho Creek Gravel Company · MSHA ID 0504478
    Abandoned
  87. Mill Iron Pit
    Surface metal/non-metal · WW Clyde & Co. · MSHA ID 0505172
    Abandoned
  88. Pit 26-Nix
    Surface metal/non-metal · Brannan Sand and Gravel Company, LLC. · MSHA ID 0505158
    Intermittent
  89. TEREX WARRIOR #5
    Surface metal/non-metal · Burnco · MSHA ID 0505069
    Abandoned
  90. Two Rivers
    Surface metal/non-metal · Raptor Materials LLC · MSHA ID 0505192
    Intermittent
  91. ALLIED PORTABLE CRUSHING
    Surface metal/non-metal · Allied Portable Crushing/Recycling · MSHA ID 0504686
    Abandoned
  92. WARRIOR POWERSCREEN 2100 0504792
    Surface metal/non-metal · BURNCO · MSHA ID 0504792
    Abandoned
  93. IDAHO CREEK GRAVEL CO. INC. 11
    Surface metal/non-metal · Idaho Creek Gravel Company · MSHA ID 0504696
    Abandoned
  94. Sweet Valley Reservoir Complex
    Surface metal/non-metal · J-2 Contracting Co. · MSHA ID 0505194
    Intermittent
  95. Van Cleave Pit
    Surface metal/non-metal · VCA Aggregates LLC · MSHA ID 0505039
    Abandoned
  96. Greeley Plant
    Surface metal/non-metal · Northern Colorado Constructors Inc. · MSHA ID 0505100
    Abandoned
  97. Crossfire Front Range Plant #2
    Surface metal/non-metal · Crossfire Aggregate Services, LLC · MSHA ID 0505052
    Abandoned
  98. Perry Pit
    Surface metal/non-metal · Northern Colorado Constructors · MSHA ID 0505029
    Abandoned
  99. Portable Plant 2
    Surface metal/non-metal · Loudwire Diesel LLC · MSHA ID 0505201
    Intermittent
  100. Sunset Industrial Pit
    Surface metal/non-metal · J-2 Contracting Co. · MSHA ID 0505214
    New Mine
  101. 115 WP 416
    Surface metal/non-metal · Varra Companies Inc · MSHA ID 0504105
    Abandoned
  102. CR-29
    Surface metal/non-metal · Asphalt Specialties Co., Inc. · MSHA ID 0505095
    Abandoned
  103. CR-45
    Surface metal/non-metal · Asphalt Specialties Co., Inc · MSHA ID 0505089
    Abandoned
  104. FEIT PIT
    Surface metal/non-metal · Richco Contracting Inc · MSHA ID 0504504
    Abandoned
  105. Firestone Screen & Crush Plant
    Surface metal/non-metal · Meridiam Partners · MSHA ID 0505173
    Abandoned
  106. Armstead Pit
    Surface metal/non-metal · Weld County Corp · MSHA ID 0503991
    Abandoned
  107. Baumgartner
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503387
    Abandoned
  108. Boulder Creek Pit
    Surface metal/non-metal · Frontier Materials · MSHA ID 0504096
    Abandoned
  109. Centennial Resources
    Surface metal/non-metal · Hall-Irwin Corp · MSHA ID 0504752
    Abandoned
  110. Challenger
    Surface metal/non-metal · Sterling Sand & Gravel Company · MSHA ID 0504172
    Abandoned
  111. Cottonwood
    Surface metal/non-metal · Western Paving Construction Company · MSHA ID 0504387
    Abandoned
  112. Crushing Plant #1 (White Rock Pit)
    Surface metal/non-metal · Plains Aggregate Company · MSHA ID 0501379
    Abandoned
  113. Crushing Plant No 1
    Surface metal/non-metal · Plains Aggregate Company · MSHA ID 0501381
    Abandoned
  114. Eagle Mine
    Underground coal · Coal Operating Company · MSHA ID 0500307
    Abandoned and Sealed
  115. Eichner
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503389
    Abandoned
  116. Evans
    Surface metal/non-metal · Mobile Premix Company · MSHA ID 0501007
    Abandoned
  117. Fiet Pit
    Surface metal/non-metal · Weld County Road & Bridge Department · MSHA ID 0503093
    Abandoned
  118. Firestone Gravel Mine
    Surface metal/non-metal · BURNCO Colorado LLC · MSHA ID 0505162
    Abandoned
  119. Geisert Pit
    Surface metal/non-metal · Weld County Road & Bridge Department · MSHA ID 0504035
    Abandoned
  120. Goodmiller 2 Pit
    Surface metal/non-metal · C&H Excavation · MSHA ID 0505203
    Abandoned
  121. Greeley Portable Plant
    Surface metal/non-metal · Mobile Premix Inc · MSHA ID 0503309
    Abandoned
  122. Greeley West Pit
    Surface metal/non-metal · Western-Mobile Northern Inc · MSHA ID 0503261
    Abandoned
  123. Hokestra Pit
    Surface metal/non-metal · Weld County Road & Bridge Department · MSHA ID 0502910
    Abandoned
  124. Imperial
    Underground coal · Imperial Coal Company · MSHA ID 0500306
    Abandoned
  125. Kohlberg Screen
    Surface metal/non-metal · Best-Way Paving Company · MSHA ID 0504480
    Abandoned
  126. LARSON PIT
    Surface metal/non-metal · Camas Colorado Inc · MSHA ID 0504602
    Abandoned
  127. Lincoln Mine
    Underground coal · Coal Operating Company · MSHA ID 0500305
    Abandoned and Sealed
  128. Lindsey
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503390
    Abandoned
  129. Lupton Meadows Gravel Mine
    Surface metal/non-metal · BURNCO Colorado LLC · MSHA ID 0505161
    Abandoned
  130. Metso 2.4 North Weld Screen
    Surface metal/non-metal · Crossfire Aggregate Services LLC · MSHA ID 0505094
    Abandoned
  131. Miller
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503391
    Abandoned
  132. Nelson Pit
    Surface metal/non-metal · Western Paving Construction Company · MSHA ID 0503260
    Abandoned
  133. North Weld Gravel
    Surface metal/non-metal · Bucklen Equipment Company Inc · MSHA ID 0505004
    Abandoned
  134. P-11-6600 PORTABLE CONVEYOR
    Surface metal/non-metal · Colorado Department Of Transportation · MSHA ID 0503381
    Abandoned
  135. Peterson
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503392
    Abandoned
  136. Philbert
    Surface metal/non-metal · So Low Transport · MSHA ID 0505197
    Abandoned
  137. Pierce Gravel Pit
    Surface metal/non-metal · Weld County Road & Bridge Department · MSHA ID 0504084
    Abandoned
  138. Pit No 1
    Surface metal/non-metal · Greeley Sand & Gravel Company · MSHA ID 0500984
    Abandoned
  139. Platteville Pit
    Surface metal/non-metal · Ramsour Brothers Inc · MSHA ID 0503265
    Abandoned
  140. Portable Mining
    Surface metal/non-metal · Weld County Road & Bridge Department · MSHA ID 0504386
    Abandoned
  141. Portable Plant #1
    Surface metal/non-metal · River Valley Rock Inc · MSHA ID 0504412
    Abandoned
  142. Portable Plant 3
    Surface metal/non-metal · Laser Oilfield Services · MSHA ID 0505053
    Abandoned
  143. PORTABLE SCREEN PLANT RENTAL
    Surface metal/non-metal · Weld County Public Works · MSHA ID 0504604
    Abandoned
  144. R.J. Campbell Pit #1
    Surface metal/non-metal · LID Not Available · MSHA ID 0504833
    Abandoned
  145. Screen Plant
    Surface metal/non-metal · Bucklen Equipment Co Inc · MSHA ID 0505070
    Abandoned
  146. SEC 01 GREELEY
    Surface metal/non-metal · Colorado Department Of Transportation · MSHA ID 0504177
    Abandoned
  147. Shipps
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503393
    Abandoned
  148. Simpson
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503394
    Abandoned
  149. State Board Of Land Comm
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503395
    Abandoned
  150. Stroh Gravel Mine
    Surface metal/non-metal · John Stroh · MSHA ID 0504227
    Abandoned
  151. Stromquist
    Surface metal/non-metal · Western Mobile Inc · MSHA ID 0503933
    Abandoned
  152. Timmerman/Wells
    Surface metal/non-metal · Wells Trucking LLC · MSHA ID 0505035
    Abandoned
  153. Turnpike Pit
    Surface metal/non-metal · Turnpike Construction · MSHA ID 0502550
    Abandoned
  154. VCA Screen #1
    Surface metal/non-metal · VCA Aggregates LLC · MSHA ID 0505073
    Abandoned
  155. WARRIOR 2100 #2
    Surface metal/non-metal · BURNCO · MSHA ID 0505057
    Abandoned
  156. Wilson
    Surface metal/non-metal · Colorado Department Of Highways · MSHA ID 0503396
    Abandoned

Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.

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How to read these numbers

The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.