Data / Mines / Colorado / Sunday Mine
Sunday Mine, San Miguel County, Colorado: 4 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Sunday Mine is a temporarily idled uranium ore underground mine in San Miguel County, Colorado, operated by Pinon Ridge Mining LLC with 12 employees on MSHA's record (mine ID 0501197). Since January 1, 2022 MSHA inspectors issued 4 citations and orders there with $596 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Sunday Mine (MSHA mine ID 0501197) in San Miguel County, Colorado: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 0501197
- Status
- Temporarily Idled since February 28, 2026
- Main commodity
- Uranium ore
- Mine type
- Underground
- County
- San Miguel County, Colorado
- Nearest town
- Slick Rock
- Operator
- Pinon Ridge Mining LLC
- Employees
- 12
- MSHA field office
- Farmington NM Field Office
- 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
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 Sunday Mine
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 |
Other open mines in San Miguel County, Colorado
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Telluride Airport Pit | Telluride Stone Company, Inc. | San Miguel County, CO | Dimension stone | 14 | 25 |
| Steincrusher LLC | Steincrusher LLC | San Miguel County, CO | Construction sand and gravel | 2 | 2 |
| Hankins Stone Quarry #1 | TJH Stone Ltd | San Miguel County, CO | Dimension sandstone | 2 | 2 |
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.