Data / Mines / Wyoming / Big Horn Basin Mines
Big Horn Basin Mines: 2 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Big Horn Basin Mines is an active bentonite surface mine in Big Horn County, Wyoming, operated by Wyo-Ben, Inc with 11 employees on MSHA's record (mine ID 4800974). Since January 1, 2022 MSHA inspectors issued 2 citations and orders there with $589 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Big Horn Basin Mines (MSHA mine ID 4800974) in Big Horn County, Wyoming: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 4800974
- Status
- Active since March 24, 1997
- Main commodity
- Bentonite
- Mine type
- Surface
- County
- Big Horn County, Wyoming
- Nearest town
- Greybull
- Operator
- Wyo-Ben, Inc
- Employees
- 11
- MSHA field office
- Gillette WY Field Office
- Citations and orders since January 1, 2022
- 2
- Significant and substantial
- 1 (50.0%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $589
- Amount paid so far
- $589
- Inspections
- 13
- Inspector hours on site
- 137
- Citations per inspection
- 0.15 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- October 22, 2026
- Citations issued to contractors here
- 15 ($7,020 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 | 1 | 1 | $442 | 0 |
| 2024 | 1 | 0 | $147 | 0 |
Standards cited most at Big Horn Basin 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 56.9300 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 1 |
Other open mines in Big Horn County, Wyoming
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Lovell Mill | American Colloid Company Mineral Group | Big Horn County, WY | Bentonite | 44 | 52 |
| Magnet Cove Mill | Wyo-Ben, Inc | Big Horn County, WY | Bentonite | 36 | 35 |
| Crusher #1 | Frost Rock Products Company | Big Horn County, WY | Construction sand and gravel | 3 | 33 |
| BPM Lovell Mill | Bentonite Performance Minerals, LLC | Big Horn County, WY | Bentonite | 62 | 27 |
| Portable #1 | Mountain Construction Company | Big Horn County, WY | Construction sand and gravel | 13 | 21 |
| Stucco Mill | Wyo-Ben, Inc | Big Horn County, WY | Bentonite | 30 | 16 |
| G-P Gypsum Quarries | Georgia-Pacific Gypsum LLC | Big Horn County, WY | Gypsum | 17 | 14 |
| Sage Creek Mill | Wyo-Ben, Inc | Big Horn County, WY | Bentonite | 17 | 13 |
| Magnet Cove Mine | Wyo-Ben, Inc | Big Horn County, WY | Bentonite | 37 | 11 |
| 3J Crushing Plant | 3J Trucking LLC | Big Horn County, WY | Construction sand and gravel | 4 | 5 |
| BPM Lovell Mine | Bentonite Performance Minerals, LLC | Big Horn County, WY | Bentonite | 23 | 1 |
| Molnar Pit | Big Horn Redi-Mix Inc | Big Horn County, WY | Construction sand and gravel | 4 | 1 |
| Capwood Properties | River Rock, LLC | Big Horn County, WY | Construction sand and gravel | 1 | 1 |
| Yellowtail Mine | American Colloid Company Mineral Group | Big Horn County, WY | Bentonite | 14 | 0 |
| Highland Excavation Pit | Highland Excavation & Construction, Inc. | Big Horn County, WY | Construction sand and gravel | 3 | 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.