MINE DETAILS
North Antelope Rochelle Mine
MSHA MINE ID4801353
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- North Antelope Rochelle Mine43.52278, -105.27222Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. MSHA quarterly production and employment reports.
Coal production
94,517,648reported short tons
Hours worked
4,006,331reported employee hours
Tons per hour
23.59production ÷ 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 | 15,191,057 | 602,326 | 25.22 | 1,141 | 1/1 mines reporting |
| 2025 Q2 | 15,252,579 | 611,869 | 24.93 | 1,126 | 1/1 mines reporting |
| 2025 Q3 | 17,112,890 | 624,358 | 27.41 | 1,141 | 1/1 mines reporting |
| 2025 Q4 | 17,396,197 | 647,061 | 26.88 | 1,184 | 1/1 mines reporting |
| 2026 Q1 | 17,053,359 | 768,369 | 22.19 | 1,208 | 1/1 mines reporting |
| 2026 Q2 | 12,511,566 | 752,348 | 16.63 | 1,213 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
15230 significant & substantial (S&S)
Accident records
420 records classified as fatality
Proposed penalties · USD
238,231.00149 of 152 violations with amounts
On-site inspection hours
1,227.2520 inspections · 20 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 | 0 | 0 | — | 3 | 0 | 1 | 6.5 |
| 2025-Q2 | 39 | 6 | 33,962.00 | 5 | 0 | 4 | 378.5 |
| 2025-Q3 | 7 | 4 | 28,736.00 | 4 | 0 | 5 | 40.3 |
| 2025-Q4 | 27 | 8 | 135,279.00 | 8 | 0 | 5 | 408.5 |
| 2026-Q1 | 32 | 5 | 20,796.00 | 7 | 0 | 1 | 2.0 |
| 2026-Q2 | 16 | 4 | 6,610.00 | 12 | 0 | 3 | 378.3 |
| 2026-Q3 | 31 | 3 | 12,848.00 | 3 | 0 | 1 | 13.3 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
77.400(a) · $165.00 proposed
HANDLING OF MATERIALS · DAYS AWAY FROM WORK ONLY
Accident narrative
Pulled on van door and broke handle off, injuring left wrist.
77.1607(n) · $151.00 proposed
103 (g) Written Notification Hazard Complaint Inspectio · 13.3 on-site hours
77.505 · $151.00 proposed
77.1607(i) · $245.00 proposed
77.505 · $151.00 proposed
77.1607(i) · $151.00 proposed
77.906 · $245.00 proposed
77.505 · $151.00 proposed
77.206(e) · $245.00 proposed
77.400(a) · $366.00 proposed
77.205(e) · $245.00 proposed
77.404(a) · $209.00 proposed
77.1605(d) · $151.00 proposed
77.205(e) · $245.00 proposed
77.505 · $151.00 proposed
77.205(e) · $818.00 proposed
77.410(b) · $366.00 proposed
77.1607(i) · $151.00 proposed
77.205(e) · $818.00 proposed
77.1104 · $226.00 proposed
77.1606(c) · S&S · $818.00 proposed
90.207(a) · $151.00 proposed
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was cutting rubber belting with a self retracting box cutter type knife and cut EE's left pointer finger causing a laceration that required 1 stitch to close.
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.
EIA-923 · COAL RECEIPTS
Coal shipments and quality
Receipts reported by power plants and terminals, matched by MSHA mine ID.
Quarterly receipts and quality
| Quarter | Short tons | Heat · Btu/lb | Sulfur % | Ash % | Delivered USD/ton | |
|---|---|---|---|---|---|---|
| 2025-Q3 * | 11,228,654 | 8,830 | 0.21 | 4.45 | 36.11 | |
| 2025-Q4 | 17,440,097 | 8,882 | 0.21 | 4.43 | 35.31 | |
| 2026-Q1 | 16,826,045 | 8,909 | 0.20 | 4.44 | 39.32 | |
| 2026-Q2 | 12,636,431 | 8,867 | 0.21 | 4.44 | 38.40 | |
| 2026-Q3 * | 4,727,275 | 8,837 | 0.20 | 4.40 | 38.76 |
| Month / source | Receiving plant / supplier | Short tons | Delivered USD/ton | Heat · Btu/lb | Sulfur % | Ash % | Purchase | Transport |
|---|---|---|---|---|---|---|---|---|
| 2026-07EIA row 11389 · preliminary | Comanche (CO)470 · CO · PEABODY COAL SALES | 14,012 | 32.91 | 8,947 | 0.19 | 4.20 | ContractSUB | Rail |
| 2026-07EIA row 11457 · preliminary | Kincaid Generation LLC876 · IL · PEABODY COAL SALES | 46,617 | —Not published | 8,908 | 0.20 | 4.50 | ContractSUB | Rail |
| 2026-07EIA row 11458 · preliminary | Powerton879 · IL · COALSALES LLC | 101,449 | —Not published | 8,740 | 0.20 | 4.50 | ContractSUB | Rail |
| 2026-07EIA row 11463 · preliminary | Baldwin Energy Complex889 · IL · DYNEGY COAL TRANDING AND TRANSPORTATION | 190,973 | —Not published | 8,965 | 0.20 | 4.20 | ContractSUB | Rail |
| 2026-07EIA row 11496 · preliminary | Michigan City997 · IN · PEABODY COAL SALES | 60,662 | 44.34 | 9,005 | 0.20 | 4.60 | ContractSUB | Rail |
| 2026-07EIA row 11532 · preliminary | La Cygne1241 · KS · PEABODY COAL SALES | 16,456 | 30.24 | 8,730 | 0.21 | 5.20 | SpotSUB | Rail |
| 2026-07EIA row 11534 · preliminary | La Cygne1241 · KS · PEABODY COAL SALES | 16,415 | 29.39 | 8,832 | 0.20 | 4.10 | SpotSUB | Rail |
| 2026-07EIA row 11538 · preliminary | La Cygne1241 · KS · PEABODY COAL SALES | 65,170 | 29.34 | 8,875 | 0.19 | 4.30 | SpotSUB | Rail |
| 2026-07EIA row 11542 · preliminary | Lawrence Energy Center1250 · KS · PEABODY COAL SALES | 46,267 | 39.62 | 8,792 | 0.20 | 4.50 | SpotSUB | Rail |
| 2026-07EIA row 11585 · preliminary | R S Nelson1393 · LA · PEABODY COAL SALES | 30,152 | 40.88 | 8,895 | 0.20 | 4.30 | ContractSUB | Rail |
| 2026-07EIA row 11632 · preliminary | J H Campbell1710 · MI · COAL SALES | 31,550 | 53.75 | 8,893 | 0.20 | 4.50 | SpotSUB | Rail |
| 2026-07EIA row 11638 · preliminary | Monroe (MI)1733 · MI · PEABODY COAL SALES | 220,407 | 41.76 | 8,908 | 0.19 | 4.40 | ContractSUB | Rail |
| 2026-07EIA row 11649 · preliminary | Allen S King1915 · MN · PEABODY COAL SALES | 26,856 | 43.07 | 8,812 | 0.20 | 4.30 | ContractSUB | Rail |
| 2026-07EIA row 11650 · preliminary | Allen S King1915 · MN · PEABODY COAL SALES | 12,992 | 43.16 | 8,775 | 0.20 | 4.30 | ContractSUB | Rail |
| 2026-07EIA row 11667 · preliminary | Hawthorn2079 · MO · PEABODY COAL SALES | 32,061 | 27.67 | 8,779 | 0.21 | 4.50 | SpotSUB | Truck |
| 2026-07EIA row 11668 · preliminary | Hawthorn2079 · MO · PEABODY COAL SALES | 48,868 | 27.72 | 8,867 | 0.19 | 4.60 | SpotSUB | Truck |
| 2026-07EIA row 11670 · preliminary | Hawthorn2079 · MO · PEABODY COAL SALES | 16,440 | 26.64 | 8,899 | 0.19 | 4.00 | SpotSUB | Truck |
| 2026-07EIA row 11673 · preliminary | Labadie2103 · MO · PEABODY COAL SALES | 138,041 | 28.90 | 8,875 | 0.20 | 4.30 | ContractSUB | Rail |
| 2026-07EIA row 11674 · preliminary | Labadie2103 · MO · PEABODY COAL SALES | 155,674 | 30.99 | 8,915 | 0.19 | 4.30 | ContractSUB | Rail |
| 2026-07EIA row 11675 · preliminary | Labadie2103 · MO · PEABODY COAL SALES | 173,209 | 29.40 | 8,825 | 0.20 | 4.30 | ContractSUB | Rail |
| 2026-07EIA row 11679 · preliminary | Sioux2107 · MO · PEABODY COAL SALES | 16,146 | 40.61 | 8,805 | 0.18 | 4.60 | ContractSUB | Rail |
| 2026-07EIA row 11682 · preliminary | New Madrid2167 · MO · PEABODY COAL TRADE | 17,521 | 46.86 | 8,861 | 0.20 | 4.70 | ContractSUB | Rail |
| 2026-07EIA row 11684 · preliminary | Thomas Hill2168 · MO · PEABODY COAL TRADE | 263,063 | 42.68 | 8,785 | 0.20 | 4.40 | ContractSUB | Rail |
| 2026-07EIA row 11686 · preliminary | Sheldon2277 · NE · BLUEGRASS COMMODITIES LP | 102,797 | 27.61 | 8,563 | 0.31 | 4.60 | ContractSUB | Rail |
| 2026-07EIA row 11793 · preliminary | Muskogee2952 · OK · PEABODY COAL SALES | 42,919 | 41.81 | 8,695 | 0.19 | 4.80 | ContractSUB | Rail |
Delivered cost includes transport and is not mine revenue. Missing prices remain blank. * Fewer than three months are published in the selected quarter. Receipts reflect the months EIA has published; an unfinished quarter is not comparable with a full quarter. Portfolio matches use current ownership.
Coverage, sources and calculations
- Reported coal receipts at EIA-923 power plants/terminals; this is not a census of mine shipments, exports or metallurgical sales.
- Matches use only the published MSHA ID, normalized to seven digits. Unidentified mine origins remain in the source table but are not assigned to a mine.
- Portfolio attribution uses current MSHA ownership, not ownership at the shipment date. Receipts and production can differ because of timing, stocks and coverage.
- Quality means are weighted by positive reported tons with that measurement. Delivered cost uses only rows with published cost, positive heat and positive tons; missing/withheld costs are never zero-filled.
- USD/ton = (cents/MMBtu ÷ 100) × MMBtu/ton. This is plant delivered cost, not mine sales price or revenue.
- Receipt month is as published, including records supplied by annual respondents. Recent months are preliminary and subject to revision. Missing rows do not prove zero shipments.
Imported releases start 2008-01. This window includes 12 published months. EIA releases · Survey instructions
- 2026 · preliminary · EIA923_Schedules_2_3_4_5_M_07_2026_21SEP2026.xlsx · Page 5 Fuel Receipts and Costs
- 2025 · final · EIA923_Schedules_2_3_4_5_M_12_2025_Final.xlsx · Page 5 Fuel Receipts and Costs
EIA ANNUAL COAL REPORT · 2024
Coal prices and estimated revenue
Annual county prices and a production-based allocation of county coal sales.
The estimate assumes each eligible mine receives its county-average price and shares county sales in proportion to production. Actual sales and prices can differ substantially. All producing annual records in this selection have estimates. Annual price data uses a separate window from the MSHA charts.
| Mine / county | Annual production · tons | County FOB · USD/ton | Est. sales · tons | Est. coal revenue · USD | Basis / availability |
|---|---|---|---|---|---|
| North Antelope Rochelle Mine4801353 · Campbell, Wyoming | 59,793,304 | 13.96 | 59,788,773 | 834,651,264 | County allocation estimate35.16% of eligible county production11 eligible mines / 11 sales respondents |
Method, assumptions and source records
- This is an annual county-sales allocation, not reported mine or company revenue. Currency is nominal USD in the source year; quantities are short tons.
- Mine share = same-year annual mine production / eligible same-county production. Estimated sales = published county sales × share. Estimated coal revenue = estimated sales × published county average FOB price.
- The model assumes eligible mines share county sales in proportion to production and receive the county-average price. Matching mine counts is a check, not proof of identical respondents. Mine quality, contracts and sales timing can differ substantially. No statistical confidence interval is implied.
- FOB excludes transport and insurance. EIA-923 delivered costs do not enter this model. No grade premium, state/national fallback, quarterly apportionment or carry-forward to a later year is applied.
- Eligibility follows the source's production threshold and excludes preparation-only and refuse operations. Withheld values, inconsistent county counts and missing/ambiguous locations produce no estimate.
- County sales are published in thousands of tons and prices to cents. Calculations retain precision, but the inputs are rounded and the allocation is approximate.
- Portfolio attribution uses current MSHA ownership, not ownership during the sales year. Covered-mine sums exclude unavailable estimates and must not be read as whole-company revenue. Coverage denominators use the annual EIA mine-production release.
Sales-reporting threshold: 50,000 short tons per mine in 2024. Withheld sales or prices stay unavailable.
EIA Table 30 · county sales and FOB prices · EIA annual mine production · Release index
Annual report released November 19, 2025. Method: county-sales-allocation-v1. JSON and CSV preserve source row numbers and file checksums.
OWNERSHIP
Operator and controller history
Current ownership comes from MSHA Mines. Historical start and end dates come from MSHA Controller and Operator History.
—
Peabody Energy CorporationcontrolsPeabody Powder River Mining LLCoperatesNorth Antelope Rochelle Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4801353—
Hanson PLCcontrolsPowder River Coal CompanyoperatesNorth Antelope Rochelle Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4801353Other 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
658 historical accident/injury rows; 3 coded fatalities and 11,940 lost days across the published record.
ACCIDENT + INJURY RECORD125 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
1,803 violation rows across the full record; 330 carry an S&S flag and $1,449,372 appears in current assessed amounts.
ENFORCEMENT ACTIVITY717 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
1,708 coal dust; 214 coal quartz; 305 noise. 0 personal-sample rows have a published C/E ratio above 1; 34 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 EXPOSURE2K samples
coal-dust-samplesquartz-samplesnoise-samples04 / PRODUCTIONcontext
Quarterly production and employment
752K employee hours and 1,213 summed average employees across reported subunits in the latest published quarter.
2026-Q212.5M tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
158 contested-violation rows, 159 civil-penalty docket/decision rows, and 31 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE348 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 CONTEXT103 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
336 inspection events and 32K published inspection hours across the historical record.
OVERSIGHT COVERAGE74 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 214 silica records across the mine’s published history.
Coal quartz concentration
Quarterly mean · µg/m³ · not-voided samples
— 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 |
|---|---|---|---|---|---|
| 58541774 / lab 2026033445 | Coal quartzQuartz | HIGHWALL DRILL OPERATORDESIGNATED WORK POSITION | 4 µg/m³5% quartz | Not voided | Not reported |
| 58541994 / lab 2026033446 | Coal quartzQuartz | CRUSHER ATTENDANTDESIGNATED WORK POSITION | 5 µg/m³0.8% quartz | Not voided | Not reported |
| 58542068 / lab 2026025263 | Coal quartzQuartz | HIGHWALL DRILL OPERATORDESIGNATED WORK POSITION | 10 µg/m³6.5% quartz | Not voided | Not reported |
| 58542074 / lab 2026025264 | Coal quartzQuartz | HIGHWALL DRILL OPERATORDESIGNATED WORK POSITION | 12 µg/m³9.7% quartz | Not voided | Not reported |
| 58542066 / lab 2026025266 | Coal quartzQuartz | HIGHWALL DRILL OPERATORDESIGNATED WORK POSITION | 14 µg/m³7% quartz | Not voided | Not reported |
| 58541594 / lab 2026021046 | Coal quartzQuartz | BULLDOZER OPERATORDESIGNATED WORK POSITION | 33 µg/m³19.2% quartz | Not voided | Not reported |
| 58541665 / lab 2026007662 | Coal quartzQuartz | HIGHWALL DRILL OPERATORDESIGNATED WORK POSITION | 4 µg/m³2.7% quartz | Not voided | Not reported |
| 58541655 / lab 2026007664 | Coal quartzQuartz | BULLDOZER OPERATORDESIGNATED WORK POSITION | 15 µg/m³12.7% quartz | Not voided | Not reported |
| 58542100 / lab 2026000824 | Coal quartzQuartz | HIGHWALL DRILL OPERATORDESIGNATED WORK POSITION | 6 µg/m³6.9% quartz | Not voided | Not reported |
| 58542094 / lab 2026000819 | Coal quartzQuartz | HIGHWALL DRILL OPERATORDESIGNATED WORK POSITION | 7 µg/m³7.8% quartz | Not voided | Not reported |
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.
ANNUAL COAL PRODUCTION59,793,304short tons
- LABOR HOURS
- 2,347,233
- AVG EMPLOYEES
- 1,127
- SUPPLY REGION
- Powder River Basin
- UNION
- No union code published
- OPERATION
- Mine and Preparation Plant
- COMPANY TYPE
- Operating Subsidiary
1 published EIA row aggregated under this MSHA ID. Components remain available in JSON.
30 CFR 77.400Mechanical equipment guards.2 recent rows ↗30 CFR 77.1607Loading and haulage equipment; operation.3 recent rows ↗30 CFR 77.505Cable fittings; suitability.3 recent rows ↗30 CFR 77.906Trailing cables supplying power to low-voltage mobile equipment; ground wires and ground check wires.1 recent row ↗30 CFR 77.206Ladders; construction; installation and maintenance.1 recent row ↗30 CFR 77.205Travelways at surface installations.1 recent row ↗30 CFR 77.404Machinery and equipment; operation and maintenance.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
960710077.400(a)Citation
503895277.1607(n)Citation
512263177.505Citation
512263077.1607(i)Citation
503421977.505Citation
512262977.1607(i)Citation
973307477.906Citation
512262877.505Citation
Coal dust, noise and other contaminants. Silica records above ↑
Coal dustHIGHWALL DRILL OPERATOR
.049 mg/m³Not voided
Coal dustHIGHWALL DRILL OPERATOR
.046 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.062 mg/m³Not voided
Coal dustHIGHWALL DRILL OPERATOR
.048 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.275 mg/m³Not voided
Coal dustBULLDOZER OPERATOR
.026 mg/m³Not voided
Coal dustHIGHWALL DRILL OPERATOR
.408 mg/m³Not voided
Coal dustHIGHWALL DRILL OPERATOR
0 mg/m³Voided · INVALID INITIAL WEIGHT
SOURCE COVERAGE
Reporting dates and coverage
17 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors658Jan 26, 2000—Aug 28, 2026mine-keyed
Addresses of Recordidentity · logistics1Dec 1, 1985—Dec 1, 1985mine-keyed
Assessed Violationscompliance · legal1,762Jan 19, 2000—Sep 2, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal159Jun 10, 2002—Sep 2, 2026mine-keyed
Coal Dust Sampleshealth · safety1,708Jan 13, 2000—Sep 18, 2026mine-keyed
Conferencescompliance · legal31Feb 20, 2001—Jul 13, 2026mine-keyed
Contested Violationscompliance · legal158Jun 3, 2004—Jun 24, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety17,494Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety3,632Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Jun 1, 1981—May 19, 1998mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance325Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance81Not published—Not publishedmine-keyed
Inspectionssafety · compliance336Jan 3, 2000—Aug 25, 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 · safety—No published rowsabsent / not applicable
Noise Sampleshealth · safety · equipment305Feb 1, 2000—Jun 16, 2026mine-keyed
Quartz Samples — Coalhealth · safety214Feb 7, 2000—Aug 13, 2026mine-keyed
Violationscompliance · safety · legal1,803Jan 19, 2000—Sep 2, 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.