MINE DETAILS
Glen Alum Tunnel Mine
MSHA MINE ID4609375
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Glen Alum Tunnel Mine37.87861, -81.37417Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-17. MSHA quarterly production and employment reports.
Coal production
—reported short tons
Hours worked
—reported employee hours
Tons per hour
—production ÷ 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 | — | — | — | — | No report |
| 2025 Q2 | — | — | — | — | No report |
| 2025 Q3 | — | — | — | — | No report |
| 2025 Q4 | — | — | — | — | No report |
| 2026 Q1 | — | — | — | — | No report |
| 2026 Q2 | — | — | — | — | No report |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-17
Violations
13521 significant & substantial (S&S)
Accident records
110 records classified as fatality
Proposed penalties · USD
52,738.00133 of 135 violations with amounts
On-site inspection hours
1,897.0015 inspections · 15 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 | 16 | 2 | 9,288.00 | 0 | 0 | 1 | 328.8 |
| 2025-Q2 | 11 | 0 | 2,181.00 | 3 | 0 | 1 | 232.0 |
| 2025-Q3 | 10 | 0 | 2,718.00 | 3 | 0 | 2 | 318.5 |
| 2025-Q4 | 31 | 7 | 11,198.00 | 1 | 0 | 2 | 228.5 |
| 2026-Q1 | 20 | 1 | 4,545.00 | 3 | 0 | 4 | 229.0 |
| 2026-Q2 | 19 | 4 | 10,114.00 | 1 | 0 | 2 | 311.3 |
| 2026-Q3 | 28 | 7 | 12,694.00 | 0 | 0 | 2 | 212.0 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 1 | 37.0 |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Regular Safety and Health Inspection · 37.0 on-site hours
Spot Inspection · 3.5 on-site hours
75.604(b) · $245.00 proposed
75.370(d) · $151.00 proposed
75.503 · $151.00 proposed
75.1100-3 · $165.00 proposed
75.503 · $151.00 proposed
75.512 · $151.00 proposed
75.370(a)(1) · $151.00 proposed
75.202(a) · S&S · $1,219.00 proposed
75.604(b) · S&S · $1,219.00 proposed
75.515 · $165.00 proposed
75.604(b) · S&S · $1,219.00 proposed
75.220(a)(1) · $151.00 proposed
75.604(b) · $151.00 proposed
75.370(a)(1) · S&S · $1,320.00 proposed
75.1725(a) · S&S · $1,219.00 proposed
75.604(b) · S&S · $1,219.00 proposed
75.517 · $151.00 proposed
75.220(a)(1) · $151.00 proposed
75.400 · $151.00 proposed
75.512 · $336.00 proposed
75.370(a)(1) · $151.00 proposed
75.220(a)(1) · $245.00 proposed
75.1722(a) · S&S · $549.00 proposed
Safety sources and definitions
MSHA Violations (issue date), Accidents (accident date), and Inspections (begin date). Snapshot 2026-10-17.
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.
No receipts matched this mine in the selected period. EIA-923 does not cover all mine sales, exports or metallurgical coal shipments.
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 |
|---|---|---|---|---|---|
| Glen Alum Tunnel Mine4609375 · Raleigh, West Virginia | 647,574 | 145.53 | 662,715 | 96,444,960 | County allocation estimate9.16% of eligible county production12 eligible mines / 12 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.
—
Alpha Natural Resources, Inc.controlsMarfork Coal Company, LLCoperatesGlen Alum Tunnel Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4609375—
Alpha Metallurgical Resources InccontrolsMarfork Coal Company, LLCoperatesGlen Alum Tunnel Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4609375—
Alpha Natural Resources Holdings, InccontrolsMarfork Coal Company, LLCoperatesGlen Alum Tunnel Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4609375—
Massey Energy CompanycontrolsMarfork Coal Company, LLCoperatesGlen Alum Tunnel Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 4609375Other 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
25 historical accident/injury rows; 0 coded fatalities and 273 lost days across the published record.
ACCIDENT + INJURY RECORD25 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
375 violation rows across the full record; 55 carry an S&S flag and $165,981 appears in current assessed amounts.
ENFORCEMENT ACTIVITY375 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
4,329 coal dust; 200 coal quartz; 118 noise. 0 personal-sample rows have a published C/E ratio above 1; 10 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 EXPOSURE5K samples
coal-dust-samplesquartz-samplesnoise-samples04 / PRODUCTIONcontext
Quarterly production and employment
The source remains registered, but no mine-keyed quarterly production row was published.
NO CURRENT QUARTERNo published quarter
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
14 contested-violation rows, 14 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE29 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 CONTEXT1 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
44 inspection events and 6K published inspection hours across the historical record.
OVERSIGHT COVERAGE44 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 17, 2026. 200 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 |
|---|---|---|---|---|---|
| 58575514 / lab 2026042182 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 2 µg/m³1.6% quartz | Not voided | Not reported |
| 58575469 / lab 2026042183 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 6 µg/m³3.3% quartz | Not voided | Not reported |
| 58575512 / lab 2026042180 | Coal quartzQuartz | SHUTTLE CAR OPERATOR (OFF STANDARD)NON DESIGNATED OCCUPATION | 2 µg/m³1.3% quartz | Not voided | Not reported |
| 58575615 / lab 2026042173 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 6 µg/m³2.9% quartz | Not voided | Not reported |
| 58575517 / lab 2026042174 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 20 µg/m³8.1% quartz | Not voided | Not reported |
| 58575617 / lab 2026042171 | Coal quartzQuartz | SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION | 3 µg/m³2.3% quartz | Not voided | Not reported |
| 58568958 / lab 2026034787 | Coal quartzQuartz | LABORERPART 90 MINER | 2 µg/m³1.2% quartz | Not voided | Not reported |
| 58575644 / lab 2026031466 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 20 µg/m³4.5% quartz | Not voided | Not reported |
| 58575670 / lab 2026031459 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 8 µg/m³4% quartz | Not voided | Not reported |
| 58575648 / lab 2026031468 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 25 µg/m³7.7% quartz | Not voided | Not reported |
| 58575655 / lab 2026031458 | Coal quartzQuartz | SHUTTLE CAR OPERATOR (OFF STANDARD)NON DESIGNATED OCCUPATION | 11 µg/m³8.6% quartz | Not voided | Not reported |
| 58575429 / lab 2026031467 | Coal quartzQuartz | SHUTTLE CAR OPERATOR (STANDARD SIDE)NON DESIGNATED OCCUPATION | 22 µg/m³9.6% quartz | Not voided | Not reported |
| 58573921 / lab 2026028865 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 12 µg/m³6.5% quartz | Not voided | Not reported |
| 58573512 / lab 2026028866 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 7 µg/m³5.2% quartz | Not voided | Not reported |
| 58573561 / lab 2026028855 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 7 µg/m³4.5% quartz | Not voided | Not reported |
| 58573575 / lab 2026028856 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 10 µg/m³3.7% quartz | Not voided | Not reported |
| 58573780 / lab 2026022139 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 10 µg/m³5.2% quartz | Not voided | Not reported |
| 58573755 / lab 2026022191 | Coal quartzQuartz | LABORERPART 90 MINER | 2 µg/m³1.2% quartz | Not voided | Not reported |
| 58573629 / lab 2026022196 | Coal quartzQuartz | ROOF BOLTER (TWIN HEAD) (RETURN SIDE)NON DESIGNATED OCCUPATION | 41 µg/m³8% quartz | Not voided | Not reported |
| 58573596 / lab 2026022200 | Coal quartzQuartz | CONTINUOUS MINER OPERATORDESIGNATED OCCUPATION | 5 µg/m³3.4% 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 PRODUCTION647,574short tons
- LABOR HOURS
- 283,539
- AVG EMPLOYEES
- 124
- SUPPLY REGION
- Appalachia Central
- UNION
- No union code published
- OPERATION
- Mine only
- COMPANY TYPE
- Operating Subsidiary
1 published EIA row aggregated under this MSHA ID. Components remain available in JSON.
30 CFR 75.604Permanent splicing of trailing cables.3 recent rows ↗30 CFR 75.370Mine ventilation plan; submission and approval.2 recent rows ↗30 CFR 75.503Permissible electric face equipment; maintenance.2 recent rows ↗30 CFR 75.1100-3Condition and examination of firefighting equipment.1 recent row ↗30 CFR 75.512Electric equipment; examination, testing and maintenance.1 recent row ↗30 CFR 75.202Protection from falls of roof, face and ribs.1 recent row ↗30 CFR 75.515Cable fittings; suitability.1 recent row ↗30 CFR 75.220Roof control plan.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
513350875.604(b)Citation
513350775.370(d)Citation
513350675.503Citation
513350575.1100-3Citation
513350475.503Citation
513350375.512Citation
513350275.370(a)(1)Citation
513350175.202(a)S&S
Coal dust, noise and other contaminants. Silica records above ↑
Coal dustSHUTTLE CAR OPERATOR (STANDARD SIDE)
.256 mg/m³Not voided
Coal dustSHUTTLE CAR OPERATOR (OFF STANDARD)
.212 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.289 mg/m³Not voided
Coal dustSHUTTLE CAR OPERATOR (STANDARD SIDE)
.297 mg/m³Not voided
Coal dustSHUTTLE CAR OPERATOR (STANDARD SIDE)
.191 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.54 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.538 mg/m³Not voided
Coal dustCONTINUOUS MINER OPERATOR
.37 mg/m³Not voided
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors25May 5, 2022—Apr 16, 2026mine-keyed
Addresses of Recordidentity · logistics1May 16, 2022—May 16, 2022mine-keyed
Assessed Violationscompliance · legal370Mar 31, 2022—Aug 5, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal14Mar 21, 2023—Jul 22, 2026mine-keyed
Coal Dust Sampleshealth · safety4,329Mar 1, 2022—Oct 15, 2026mine-keyed
Conferencescompliance · legal1Jul 1, 2024—Jul 1, 2024mine-keyed
Contested Violationscompliance · legal14Sep 12, 2022—Jun 6, 2026mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety97Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety31Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance4Aug 13, 2021—Aug 13, 2021mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance—No published rowsabsent / not applicable
Mine Employment and Production — Yearlyproduction · safety · compliance10Not published—Not publishedmine-keyed
Inspectionssafety · compliance44Feb 23, 2022—Oct 2, 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 · equipment118Feb 24, 2022—Oct 6, 2026mine-keyed
Quartz Samples — Coalhealth · safety200Mar 1, 2022—Oct 6, 2026mine-keyed
Violationscompliance · safety · legal375Mar 31, 2022—Aug 5, 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.