Data / Mines / Idaho / Thompson Creek Mine
Thompson Creek Mine, Custer County, Idaho: 28 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Thompson Creek Mine is an active molybdenum ore surface mine in Custer County, Idaho, operated by Thompson Creek Mining Company with 233 employees on MSHA's record (mine ID 1000531). Since January 1, 2022 MSHA inspectors issued 28 citations and orders there with $4,272 in proposed penalties, and 25 accident reports were filed there, with 25 injury or illness cases.
The request: Watch Thompson Creek Mine (MSHA mine ID 1000531) in Custer County, Idaho: each new citation and each accident report. $10 of work on sign-up, no card.
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- MSHA mine ID
- 1000531
- Status
- Active since September 29, 2023
- Main commodity
- Molybdenum ore
- Mine type
- Surface
- County
- Custer County, Idaho
- Nearest town
- Clayton
- Operator
- Thompson Creek Mining Company
- Parent company
- Thompson Creek Metals Co USA
- Employees
- 233
- MSHA field office
- Boise ID Field Office
- Citations and orders since January 1, 2022
- 28
- Significant and substantial
- 0 (0.0%)
- Closure orders
- 1
- High negligence or reckless
- 0
- Proposed penalties
- $4,272
- Amount paid so far
- $4,272
- Inspections
- 38
- Inspector hours on site
- 287
- Citations per inspection
- 0.74 (all mines 2.30)
- Accident reports
- 25
- Injury and illness cases
- 25
- Fatalities
- 0
- Latest MSHA record
- October 27, 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 |
|---|---|---|---|---|
| 2022 | 1 | 0 | $133 | 2 |
| 2024 | 7 | 0 | $1,029 | 4 |
| 2025 | 5 | 0 | $755 | 9 |
| 2026 | 15 | 0 | $2,355 | 10 |
Standards cited most at Thompson Creek 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 56.4201 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.4102 | Surface metal and nonmetal mines | 4 |
| 30 CFR 56.14103 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14107 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.12019 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.14100 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.11002 | Surface metal and nonmetal mines | 2 |
| 30 CFR 56.11012 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12013 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.4130 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.9300 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.12008 | Surface metal and nonmetal mines | 1 |
| 30 CFR 50.30 | Reporting of accidents, injuries and illnesses | 1 |
| 30 CFR 56.12068 | Surface metal and nonmetal mines | 1 |
| 30 CFR 56.14205 | Surface metal and nonmetal mines | 1 |
Injury and illness cases at Thompson Creek Mine
Accident reports by degree of injury, as the operator reported them to MSHA.
| Degree | Cases |
|---|---|
| Permanent disability | 1 |
| Days away from work or restricted activity | 18 |
| No lost time, or an occupational illness | 6 |
What the accident reports at Thompson Creek Mine describe
Accident classification, as MSHA codes the circumstances that contributed most directly.
| Classification | Reports |
|---|---|
| Slip or fall of person | 7 |
| Handling of materials | 6 |
| Machinery | 4 |
| Powered haulage | 2 |
| Disorders (repeated trauma) | 2 |
| Stepping or kneeling on object | 2 |
| Handtools (nonpowered) | 2 |
Equipment named in accident reports at Thompson Creek Mine
| Equipment | Reports |
|---|---|
| Ore haulage trucks - off highway trucks | 3 |
| Hand tools (not powered) | 2 |
| Bench grinder | 1 |
| Front-end loader | 1 |
| Carriage-mounted drills | 1 |
| Bulldozer | 1 |
| Shovel | 1 |
| Ore haulage trucks - on highway trucks | 1 |
Other open mines in Custer County, Idaho
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Darlington Mine | US Calcium LLC | Custer County, ID | Crushed, broken limestone | 6 | 14 |
| C R M Pit #1 | 3BW LLC | Custer County, ID | Construction sand and gravel | 2 | 4 |
| Mobile Screen Plant | P-Diamond LLC | Custer County, ID | Crushed, broken limestone | 1 | 0 |
| Minyu Jaw Crusher | US Calcium LLC | Custer County, ID | Not stated | 0 | 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.