MINE DETAILS
Smoky Canyon Mine
MSHA MINE ID1001590
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Smoky Canyon Mine42.76278, -111.07139Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
0reported short tons
Hours worked
667,631reported employee hours
Tons per hour
0.00production ÷ hours worked
Missing values appear as —. Totals use available reports. Tons per hour requires production and hours for the same quarters and a nonzero hours total. * Striped bars mark partial mine coverage or an incomplete quarter. See the table for coverage.
Quarterly data and reporting coverage
| Quarter | Coal (short tons) | Hours worked | Tons / hour | Avg. employees | Coverage |
|---|---|---|---|---|---|
| 2025 Q1 | 0 | 111,150 | 0.00 | 224 | 1/1 mines reporting |
| 2025 Q2 | 0 | 114,403 | 0.00 | 234 | 1/1 mines reporting |
| 2025 Q3 | 0 | 111,189 | 0.00 | 229 | 1/1 mines reporting |
| 2025 Q4 | 0 | 108,081 | 0.00 | 222 | 1/1 mines reporting |
| 2026 Q1 | 0 | 109,880 | 0.00 | 218 | 1/1 mines reporting |
| 2026 Q2 | 0 | 112,928 | 0.00 | 225 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
247 significant & substantial (S&S)
Accident records
70 records classified as fatality
Proposed penalties · USD
9,274.0024 of 24 violations with amounts
On-site inspection hours
224.2511 inspections · 11 with hours
Counts are published records, including contractor records. * The quarter was incomplete at the snapshot date; recent counts may rise as reports arrive. — means no reported amount or hours. Portfolio totals use current membership.
Quarterly safety data
| Quarter | Violations | S&S | Proposed USD | Accident records | Fatality records | Inspections | On-site hours |
|---|---|---|---|---|---|---|---|
| 2025-Q1 | 11 | 2 | 3,698.00 | 1 | 0 | 2 | 32.8 |
| 2025-Q2 | 0 | 0 | — | 1 | 0 | 1 | 5.0 |
| 2025-Q3 | 8 | 4 | 3,971.00 | 1 | 0 | 2 | 80.8 |
| 2025-Q4 | 0 | 0 | — | 1 | 0 | 1 | 5.3 |
| 2026-Q1 | 1 | 0 | 398.00 | 0 | 0 | 2 | 39.5 |
| 2026-Q2 | 4 | 1 | 1,207.00 | 2 | 0 | 2 | 55.0 |
| 2026-Q3 | 0 | 0 | — | 1 | 0 | 1 | 6.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Impoundment Spot Inspection · 6.0 on-site hours
SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Tripped on a pipe causing employee to fall and smash EE's hand resulting in 7 stitches to the right palm.
Impoundment Spot Inspection · 2.0 on-site hours
56.12032 · $151.00 proposed
56.12032 · $151.00 proposed
56.14100(b) · $313.00 proposed
56.14100(c) · S&S · $592.00 proposed
Regular Safety and Health Inspection · 53.0 on-site hours
SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
blaster was loading a shot and stepped in a drill hole causing EE to lacerate EE's shin, the laceration required 3 stitches
SLIP OR FALL OF PERSON · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was walking the drill pad prior to doing EE's pre shift on the drill. it had snowed 3 inches that evening and EE stepped on the edge of a tire track that caused EE to slip/Trip and fall to EE's knee. when EE came down, EE came in contact with a sharp-edged rock on EE's shin just below the knee cap. we took EE to urgent care where they gave EE 4 Stiches. same day.
Impoundment Spot Inspection · 5.5 on-site hours
56.14101(a)(2) · $398.00 proposed
Regular Safety and Health Inspection · 34.0 on-site hours
Impoundment Spot Inspection · 5.3 on-site hours
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was doing a brake inspection of a Trailer when EE was measuring the slack adjuster a small chunk of dirt fell between EE's safety glasses and EE's eye causing scratches on EE's eye. we took EE to urgent care where the prescribed EE antibiotics.
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
EMPLOYEE WAS WIPING DOWN HUB SURFACE OF THE LEFT FRONT BRAKE ON 13060. ANOTHER EMPLYOEE WAS REMOVING DUO-CONE SEAL AT THE SAME TIME. THE DAMAGED METAL RING SPUNG FORWARD AND HIT THE EMPLOYEE IN THE RIGHT THUMB KNUCKLE CUTTING IT OPEN, RESULTING IN STITCHES.
56.11012 · S&S · $592.00 proposed
58.620 · S&S · $398.00 proposed
56.14107(a) · S&S · $398.00 proposed
56.14101(a)(2) · $465.00 proposed
56.12020 · $465.00 proposed
56.14132(a) · $465.00 proposed
56.14101(a)(3) · S&S · $1,037.00 proposed
56.4201(a)(2) · $151.00 proposed
Regular Safety and Health Inspection · 75.3 on-site hours
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-13.
Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.
Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.
S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.
Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.
Portfolio totals use current mine membership, including events before the current owner or operator's tenure.
CFR headings link to the current Title 30 index; they are not historical legal determinations.
OWNERSHIP
Operator and controller history
Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.
—
Scott SimplotcontrolsJ R Simplot CompanyoperatesSmoky Canyon Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 1001590Other historical summaries · source-specific periods
RECORD SUMMARY
Production, safety and enforcement
These summaries use the periods stated on each card, independently of the reporting period above.
01 / SAFETYwatch
Accidents and injuries
118 historical accident/injury rows; 1 coded fatalities and 2,187 lost days across the published record.
ACCIDENT + INJURY RECORD14 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
276 violation rows across the full record; 53 carry an S&S flag and $92,866 appears in current assessed amounts.
ENFORCEMENT ACTIVITY68 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
81 personal. 2 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
OCCUPATIONAL EXPOSURE81 samples
personal-health-samples04 / PRODUCTIONcontext
Quarterly production and employment
113K employee hours and 225 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
17 contested-violation rows, 17 civil-penalty docket/decision rows, and 5 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE39 linked rows
conferencescontested-violationscivil-penalty-dockets-decisions06 / CONTRACTORScontext
Contractors
Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
ENTITY-LEVEL CONTEXT10 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
105 inspection events and 5K published inspection hours across the historical record.
OVERSIGHT COVERAGE35 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 19 silica records across the mine’s published history.
Personal silica samples · concentration / limit
Quarterly mean · published C/E ratio
— No eligible measurements. * Quarter in progress. Means describe the available samples, not average exposure across the mine.
Quartz % is the sample’s quartz content; µg/m³ is its reported concentration. Personal C/E is the ratio to the limit published with that sample. Personal and area concentration units and void status are not specified in those source files.
| Date / sample | Dataset / analyte | Occupation / area | Measurement | Sample status | Published action |
|---|---|---|---|---|---|
| No silica records match these filters. Missing samples do not establish safe conditions. | |||||
Sources and interpretation
- Coal means use numeric concentrations from samples marked not voided, excluding control/invalid sample types and dates after the snapshot. Missing values remain null; reported zeroes remain zero.
- Quarterly means describe available samples, not mine-wide or worker-average exposure. Quarters with no eligible measurements remain empty; the current quarter is partial.
- Personal C/E is MSHA's published concentration-to-limit ratio. A value above 1 is not by itself a citation or a determination under the 2024 silica rule. Personal and area files do not publish a void-status field.
- Area records include bulk-dust analyses and are kept separate from personal exposure results. Their concentration units are not specified in the source dictionary.
- Missing samples do not establish safe conditions. Coal quartz percentage and concentration are separate measures. No compliance threshold is inferred for coal samples.
Coal quartz field definitions ↗Metal/nonmetal personal field definitions ↗Metal/nonmetal area field definitions ↗
EIA + TITLE 30
EIA production and cited regulations
EIA annual figures are reported separately from MSHA. Regulation links use the current eCFR snapshot.
Not present in the 2024 EIA coal workbook.
This can mean the operation is non-coal, inactive for the annual period, or outside the EIA-7A reporting population.
30 CFR 56.12032Inspection and cover plates.2 recent rows ↗30 CFR 56.14100Safety defects; examination, correction and records.2 recent rows ↗30 CFR 56.14101Brakes.3 recent rows ↗30 CFR 56.11012Protection for openings around travelways.1 recent row ↗30 CFR 58.620Drill dust control.1 recent row ↗30 CFR 56.14107Moving machine parts.1 recent row ↗30 CFR 56.12020Protection of persons at switchgear.1 recent row ↗30 CFR 56.14132Horns and backup alarms.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
505567856.12032Citation
505567756.12032Citation
505567656.14100(b)Citation
505567556.14100(c)S&S
505534356.14101(a)(2)Citation
505552356.11012S&S
505552258.620S&S
505552156.14107(a)S&S
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgBall Mill Operator
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgDrill Operator, Rotary
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgTruck Driver
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Unlisted Particulate, respirable, <1% QtzBall Mill Operator
C/E: 00.00Concentration: 0000.13 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
15 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors118Feb 7, 2000—Aug 17, 2026mine-keyed
Addresses of Recordidentity · logistics1Sep 7, 1982—Sep 7, 1982mine-keyed
Assessed Violationscompliance · legal272May 23, 2000—May 18, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal17May 20, 2010—Apr 3, 2024mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal5Aug 17, 2000—Nov 25, 2019mine-keyed
Contested Violationscompliance · legal17Apr 14, 2009—Jul 26, 2023mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety703Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety160Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance1Sep 1, 1982—Sep 1, 1982mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance318Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance105Jan 19, 2000—Aug 19, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety—No published rowsabsent / not applicable
Metal and Nonmetal Personal Health Sampleshealth · safety81Apr 4, 2001—Aug 7, 2025mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal276May 23, 2000—May 18, 2026mine-keyed
107(a) Orders Issuedsafety · compliance—No published rowsabsent / not applicable
NOTES
Limitations
- Contractor production is entity-level and is never represented as mine-attributable.
- Missing rows can mean no event, publication delay, identity mismatch, or inapplicability.