MINE DETAILS
Smoky Valley Common Operations
MSHA MINE ID2600594
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Smoky Valley Common Operations38.70833, -117.10333Open 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
1,983,392reported 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 | 348,983 | 0.00 | 663 | 1/1 mines reporting |
| 2025 Q2 | 0 | 307,843 | 0.00 | 671 | 1/1 mines reporting |
| 2025 Q3 | 0 | 357,331 | 0.00 | 661 | 1/1 mines reporting |
| 2025 Q4 | 0 | 297,898 | 0.00 | 662 | 1/1 mines reporting |
| 2026 Q1 | 0 | 325,616 | 0.00 | 628 | 1/1 mines reporting |
| 2026 Q2 | 0 | 345,721 | 0.00 | 696 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
1053 significant & substantial (S&S)
Accident records
270 records classified as fatality
Proposed penalties · USD
54,882.00105 of 105 violations with amounts
On-site inspection hours
451.2513 inspections · 13 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 | 37 | 1 | 11,216.00 | 8 | 0 | 1 | 143.3 |
| 2025-Q2 | 0 | 0 | — | 3 | 0 | 0 | — |
| 2025-Q3 | 29 | 1 | 8,492.00 | 1 | 0 | 2 | 100.3 |
| 2025-Q4 | 22 | 1 | 4,951.00 | 2 | 0 | 1 | 86.3 |
| 2026-Q1 | 0 | 0 | — | 4 | 0 | 3 | 28.5 |
| 2026-Q2 | 0 | 0 | — | 7 | 0 | 2 | 4.5 |
| 2026-Q3 | 17 | 0 | 30,223.00 | 2 | 0 | 3 | 88.5 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 1 | 0.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Impoundment Spot Inspection · 0.0 on-site hours
EXPLODING VESSELS UNDER PRESSURE · DAYS AWAY FROM WORK ONLY
Accident narrative
The operator was attempting to clear a blockage in a carbon transfer line. Upon removal of a VIC coupling, heated contents from inside the line splashed onto the operator's face and wrist, resulting in second-degree burns.
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
An employee was changing a traveling hose on a drill mast while working from a man basket at the drill build site. The hose popped out of the half clamp and struck their arm.
Verbal Hazard Complaint Inspections · 5.5 on-site hours
Impoundment Spot Inspection · 3.5 on-site hours
56.12028 · $13,436.00 proposed
56.12028 · $4,047.00 proposed
56.12023 · $165.00 proposed
56.14107(a) · $549.00 proposed
47.41(a) · $366.00 proposed
56.12028 · $4,047.00 proposed
47.41(a) · $366.00 proposed
56.4104(a) · $366.00 proposed
56.12008 · $366.00 proposed
56.14107(a) · $883.00 proposed
56.12013 · $592.00 proposed
56.12028 · $2,133.00 proposed
56.4101 · $151.00 proposed
56.4201(a)(5) · $592.00 proposed
56.14107(a) · $883.00 proposed
56.14107(a) · $883.00 proposed
56.14107(a) · $398.00 proposed
Regular Safety and Health Inspection · 79.5 on-site hours
HANDLING OF MATERIALS · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
While working on water line employee reached into tub to thread a pipe and felt EE's back give out.
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
An employee identified a rock in front of the inner dual tire of a parked haul truck. After communicating with the operator and confirming the truck would remain stationary, the employee attempted to remove the rock to prevent potential tire damage. During the removal attempt, the employee sustained a bicep injury.
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.
—
Kinross Gold CorporationcontrolsRound Mountain Gold CorporationoperatesSmoky Valley Common Operations
msha-controller-operator-history · controller/operator co-tenure derived on mine 2600594—
Echo Bay Mines LtdcontrolsRound Mountain Gold CorporationoperatesSmoky Valley Common Operations
msha-controller-operator-history · controller/operator co-tenure derived on mine 2600594Other 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
303 historical accident/injury rows; 1 coded fatalities and 2,597 lost days across the published record.
ACCIDENT + INJURY RECORD56 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
1,077 violation rows across the full record; 155 carry an S&S flag and $651,326 appears in current assessed amounts.
ENFORCEMENT ACTIVITY264 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
514 personal; 74 area. 22 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 EXPOSURE588 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
346K employee hours and 696 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
87 contested-violation rows, 88 civil-penalty docket/decision rows, and 151 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE326 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 CONTEXT59 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
214 inspection events and 13K published inspection hours across the historical record.
OVERSIGHT COVERAGE65 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 32 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 56.12028Testing grounding systems.4 recent rows ↗30 CFR 56.12023Guarding electrical connections and resistor grids.1 recent row ↗30 CFR 56.14107Moving machine parts.2 recent rows ↗30 CFR 47.41Requirement for container labels.2 recent rows ↗30 CFR 56.4104Combustible waste.1 recent row ↗30 CFR 56.12008Insulation and fittings for power wires and cables.1 recent row ↗30 CFR 56.12013Splices and repairs of power cables.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
510396356.12028Citation
510386156.12028Citation
510396256.12023Citation
510396156.14107(a)Citation
510395947.41(a)Citation
510386056.12028Citation
510385947.41(a)Citation
510385856.4104(a)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Vanadium dustWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0500.00Source unit unspecified
Nickel dust & saltsWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0001.00Source unit unspecified
Molybdenum dustWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0010.00Source unit unspecified
Manganese dustWelder, etc.
C/E: 00.00Concentration: 0000.01 · limit: 0005.00Source unit unspecified
Lead, inorganic dustWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0150.00Source unit unspecified
Copper dust and mistWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0001.00Source unit unspecified
Cobalt dustWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0100.00Source unit unspecified
Chromium, solubleWelder, etc.
C/E: 00.00Concentration: 0000.00 · limit: 0500.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors303Feb 7, 2000—Sep 26, 2026mine-keyed
Addresses of Recordidentity · logistics1Sep 22, 1975—Sep 22, 1975mine-keyed
Assessed Violationscompliance · legal1,048May 2, 2000—Jul 9, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal88May 23, 2001—May 4, 2022mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal151May 3, 2001—Aug 26, 2026mine-keyed
Contested Violationscompliance · legal87Sep 19, 2006—Sep 16, 2021mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety9,154Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety1,856Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Jan 1, 1950—Jan 1, 1950mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance318Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance214May 2, 2000—Oct 6, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety74Apr 24, 2010—Jun 1, 2016mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety514Apr 24, 2001—Mar 24, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal1,077May 2, 2000—Jul 9, 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.