Data / Mines / Pinon Ridge Mining LLC
Pinon Ridge Mining LLC: 1 open mine, 4 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Pinon Ridge Mining LLC (MSHA operator ID 0163433) operates 1 open mine with 12 employees in Colorado, mostly uranium ore. Since January 1, 2022 MSHA inspectors issued it 4 citations and orders with $596 in proposed penalties, and it reported no injury or illness cases. Data from MSHA, November 6, 2026.
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- MSHA operator ID
- 0163433
- Open mines
- 1
- Employees at open mines
- 12
- States
- Colorado
- Citations and orders since January 1, 2022
- 4
- Significant and substantial
- 1 (25.0%)
- Closure orders
- 0
- High negligence or reckless
- 0
- Proposed penalties
- $596
- Amount paid so far
- $596
- Inspections
- 16
- Inspector hours on site
- 184
- Citations per inspection
- 0.25 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- February 24, 2026
Open mines of Pinon Ridge Mining LLC
Ranked by citations since January 1, 2022.
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Sunday Mine | Pinon Ridge Mining LLC | San Miguel County, CO | Uranium ore | 12 | 4 |
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 |
|---|---|---|---|---|
| 2024 | 2 | 0 | $294 | 0 |
| 2025 | 2 | 1 | $302 | 0 |
Standards cited most at Pinon Ridge Mining LLC
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 57.5001 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.12018 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.12032 | Underground metal and nonmetal mines | 1 |
| 30 CFR 57.11001 | Underground metal and nonmetal mines | 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.