Data / Mines / Wyoming / Park County
Mines in Park County, Wyoming: 9 open mines
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
MSHA lists 9 open mines in Park County, Wyoming, run by 7 operators and employing 37 people. Since January 1, 2022 its inspectors issued 55 citations and orders there with $8,814 in proposed penalties, and operators reported 2 injury or illness cases. The operators with the most open mines are Certainteed Gypsum and Ceiling Manufacturing Inc; G & L Water; Colorado Lien Company. Data from MSHA, November 6, 2026.
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- Open mines
- 9
- Operators
- 7
- Employees
- 37
- Active
- 3
- Intermittent
- 3
- Temporarily Idled
- 3
- Mines run by individuals, counted and not listed
- 1
- Citations and orders since January 1, 2022
- 55
- Significant and substantial
- 8 (14.5%)
- Closure orders
- 0
- High negligence or reckless
- 4
- Proposed penalties
- $8,814
- Amount paid so far
- $8,071
- Inspections
- 50
- Inspector hours on site
- 290
- Citations per inspection
- 1.10 (all mines 2.30)
- Accident reports
- 2
- Injury and illness cases
- 2
- Fatalities
- 0
- Latest MSHA record
- November 5, 2026
Operators with the most open mines in Park County, Wyoming
Ranked by open mines, then by citations. Sole proprietors and individuals are not listed.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Certainteed Gypsum and Ceiling Manufacturing Inc | 2 | 7 | 12 | $2,098 | 0 |
| G & L Water | 2 | 4 | 10 | $1,913 | 0 |
| Colorado Lien Company | 1 | 15 | 26 | $3,772 | 2 |
| Nowood Construction Inc | 1 | 2 | 2 | $294 | 0 |
| Dark Horse Trucking Inc. | 1 | 2 | 1 | $151 | 0 |
| Croell, Inc. | 1 | 5 | 0 | $0 | 0 |
Operators with the most citations in Park County, Wyoming
Citations and orders issued since January 1, 2022 at their open mines here.
| Operator | Open mines | Employees | Citations since 2022 | Proposed penalties | Injury cases |
|---|---|---|---|---|---|
| Colorado Lien Company | 1 | 15 | 26 | $3,772 | 2 |
| Certainteed Gypsum and Ceiling Manufacturing Inc | 2 | 7 | 12 | $2,098 | 0 |
| G & L Water | 2 | 4 | 10 | $1,913 | 0 |
| Nowood Construction Inc | 1 | 2 | 2 | $294 | 0 |
| Dark Horse Trucking Inc. | 1 | 2 | 1 | $151 | 0 |
| Croell, Inc. | 1 | 5 | 0 | $0 | 0 |
Mines with the most citations
Open mines, ranked by citations and orders since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Wyoming Lime Products | Colorado Lien Company | Park County, WY | Lime | 15 | 26 |
| Terex Finlay 693 Screen | G & L Water | Park County, WY | Construction sand and gravel | 2 | 10 |
| CertainTeed Cody RHP | Certainteed Gypsum and Ceiling Manufacturing Inc | Park County, WY | Gypsum | 6 | 6 |
| Certainteed Cody Quarry | Certainteed Gypsum and Ceiling Manufacturing Inc | Park County, WY | Gypsum | 1 | 6 |
| Screening Plant | Nowood Construction Inc | Park County, WY | Construction sand and gravel | 2 | 2 |
| Leigh Ranch, Smith Pit | Dark Horse Trucking Inc. | Park County, WY | Construction sand and gravel | 2 | 1 |
| West Wash Plant #13 | Croell, Inc. | Park County, WY | Construction sand and gravel | 5 | 0 |
| Jaw Crusher | G & L Water | Park County, WY | Construction sand and gravel | 2 | 0 |
Main commodities
| Main commodity | Open mines | Share |
|---|---|---|
| Construction sand and gravel | 6 | 66.7% |
| Gypsum | 2 | 22.2% |
| Lime | 1 | 11.1% |
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 | 16 | 4 | $2,542 | 0 |
| 2023 | 5 | 0 | $715 | 2 |
| 2024 | 15 | 1 | $2,247 | 0 |
| 2025 | 14 | 1 | $2,114 | 0 |
| 2026 | 5 | 2 | $1,196 | 0 |
Standards cited most at mines in Park County, Wyoming
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 56.12018 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.1000 | Surface metal and nonmetal mines | 4 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 4 |
| 30 CFR 56.12004 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.11001 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.18002 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14132 | Surface metal and nonmetal mines | 3 |
| 30 CFR 56.14207 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 47.41 | Hazard communication | 2 |
| 30 CFR 56.4101 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.20003 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12028 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.16003 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at mines in Park County, Wyoming
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| No lost time, or an occupational illness | 2 |
What the accident reports at mines in Park County, Wyoming describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Machinery | 1 |
| Disorders (repeated trauma) | 1 |
Equipment named in accident reports at mines in Park County, Wyoming
| Equipment | Reports |
|---|---|
| Tugger | 1 |
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.