Data / Mines / Utah / Bonanza Mines
Bonanza Mines, Uintah County, Utah: 46 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Bonanza Mines is an active gilsonite underground mine in Uintah County, Utah, operated by American Gilsonite Company with 70 employees on MSHA's record (mine ID 4200854). Since January 1, 2022 MSHA inspectors issued 46 citations and orders there with $9,864 in proposed penalties, and 12 accident reports were filed there, with 12 injury or illness cases.
The request: Watch Bonanza Mines (MSHA mine ID 4200854) in Uintah County, Utah: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4200854
- Status
- Active since June 22, 1982
- Main commodity
- Gilsonite
- Mine type
- Underground
- County
- Uintah County, Utah
- Nearest town
- Bonanza
- Operator
- American Gilsonite Company
- Employees
- 70
- MSHA field office
- Price UT Field Office
- Citations and orders since January 1, 2022
- 46
- Significant and substantial
- 9 (19.6%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $9,864
- Amount paid so far
- $9,713
- Inspections
- 23
- Inspector hours on site
- 836
- Citations per inspection
- 2.00 (all mines 2.30)
- Accident reports
- 12
- Injury and illness cases
- 12
- Fatalities
- 0
- Latest MSHA record
- September 10, 2026
- Citations issued to contractors here
- 7 ($10,188 proposed)
Citations and injury cases by year
Calendar years since 2022; 2026 runs to the date of the MSHA files.
| Year | Citations and orders | Significant and substantial | Proposed penalties | Injury and illness cases |
|---|---|---|---|---|
| 2022 | 7 | 1 | $1,361 | 3 |
| 2023 | 16 | 5 | $4,130 | 5 |
| 2024 | 9 | 1 | $1,470 | 1 |
| 2025 | 12 | 2 | $2,601 | 1 |
| 2026 | 2 | 0 | $302 | 2 |
Standards cited most at Bonanza Mines
Sections of Title 30 of the Code of Federal Regulations named on the citations, with the part each belongs to.
| Standard | What the part covers | Citations |
|---|---|---|
| 30 CFR 57.4201 | Underground metal and nonmetal mines | 5 |
| 30 CFR 57.12004 | Underground metal and nonmetal mines | 3 |
| 30 CFR 62.130 | Occupational noise exposure | 3 |
| 30 CFR 57.14100 | Underground metal and nonmetal mines | 2 |
| 30 CFR 57.3200 | Underground metal and nonmetal mines | 2 |
| 30 CFR 57.12025 | Underground metal and nonmetal mines | 2 |
| 30 CFR 47.41 | Hazard communication | 2 |
| 30 CFR 57.13021 | Underground metal and nonmetal mines | 2 |
| 30 CFR 57.14107 | Underground metal and nonmetal mines | 2 |
| 30 CFR 57.6101 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.15005 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.19109 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.11016 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.11001 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.11002 | Underground metal and nonmetal mines | 1 |
Injury and illness cases at Bonanza Mines
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Days away from work or restricted activity | 6 |
| No lost time, or an occupational illness | 6 |
What the accident reports at Bonanza Mines describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Handling of materials | 6 |
| Slip or fall of person | 4 |
| Stepping or kneeling on object | 1 |
| Handtools (nonpowered) | 1 |
Equipment named in accident reports at Bonanza Mines
| Equipment | Reports |
|---|---|
| Hand tools (not powered) | 1 |
Other open mines in Uintah County, Utah
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Vernal Pit & Mill | Simplot Phosphates LLC | Uintah County, UT | Phosphate rock | 140 | 33 |
| Bonanza Process Plant | American Gilsonite Company | Uintah County, UT | Gilsonite | 24 | 30 |
| Wildcat Sand Plant | Wildcat Sand LLC | Uintah County, UT | Sand, common | 2 | 28 |
| Cottonwood Mines | American Gilsonite Company | Uintah County, UT | Gilsonite | 10 | 24 |
| David L. Murray Trust | David L. Murray Trust | Uintah County, UT | Construction sand and gravel | 2 | 21 |
| KW Crushing | KW Crushing | Uintah County, UT | Construction sand and gravel | 4 | 12 |
| Kwtlp1 | KW Crushing | Uintah County, UT | Construction sand and gravel | 2 | 11 |
| TRM Mine and Mill | Table Rock Minerals LLC | Uintah County, UT | Gilsonite | 4 | 5 |
| Wall Pit And Plant | Intermountain Concrete Co. | Uintah County, UT | Construction sand and gravel | 2 | 4 |
| Randlett Pit | Sunroc Corporation | Uintah County, UT | Construction sand and gravel | 4 | 2 |
| TRM Mill | Table Rock Minerals LLC | Uintah County, UT | Gilsonite | 2 | 0 |
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.