MINE DETAILS
Continental Mine
MSHA MINE ID2400338
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Continental Mine46.01306, -112.52250Open 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
1,324,862reported 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 | 218,993 | 0.00 | 420 | 1/1 mines reporting |
| 2025 Q2 | 0 | 227,986 | 0.00 | 430 | 1/1 mines reporting |
| 2025 Q3 | 0 | 224,041 | 0.00 | 440 | 1/1 mines reporting |
| 2025 Q4 | 0 | 213,126 | 0.00 | 421 | 1/1 mines reporting |
| 2026 Q1 | 0 | 216,255 | 0.00 | 423 | 1/1 mines reporting |
| 2026 Q2 | 0 | 224,461 | 0.00 | 430 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
398 significant & substantial (S&S)
Accident records
170 records classified as fatality
Proposed penalties · USD
17,365.0035 of 39 violations with amounts
On-site inspection hours
261.0015 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 | 0 | 0 | — | 2 | 0 | 1 | 1.8 |
| 2025-Q2 | 9 | 3 | 4,073.00 | 2 | 0 | 2 | 50.5 |
| 2025-Q3 | 4 | 2 | 3,870.00 | 5 | 0 | 3 | 26.5 |
| 2025-Q4 | 18 | 3 | 8,778.00 | 3 | 0 | 3 | 61.5 |
| 2026-Q1 | 0 | 0 | — | 3 | 0 | 1 | 2.5 |
| 2026-Q2 | 4 | 0 | 644.00 | 2 | 0 | 2 | 99.5 |
| 2026-Q3 | 4 | 0 | — | 0 | 0 | 3 | 18.8 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
Compliance Follow-up Inspection · 2.0 on-site hours
Spot Inspection · 14.8 on-site hours
56.14112(b)
56.20003(a)
56.4102
56.3200
Impoundment Spot Inspection · 2.0 on-site hours
56.18013 · $151.00 proposed
47.41(a)(1) · $165.00 proposed
56.14100(b) · $177.00 proposed
56.4200(a)(1) · $151.00 proposed
Regular Safety and Health Inspection · 97.3 on-site hours
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was adjusting a sand gate on the float cells. To adjust the gate, you pull on a handle. EE leaned over the handle and pulled the handle hitting self in the forehead. Resulted in two stitches.
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Removing motor in float cell, motor shifted and struck back of hand resulting in laceration requiring 4 stitches.
Impoundment Spot Inspection · 2.3 on-site hours
HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
INSTALLING A VITRIOLIC COUPLING ON A PIPE. WHILE HOLDING THE COUPLING A CO-WORKER WAS SWINGING A HAMMER TO SET THE COUPLING. CO-WORKER MISSED THE COUPLING AND HIT LEFT MIDDLE FINGER.
HANDTOOLS (NONPOWERED) · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was adjusting forks on forklift to lift a skiff. They used a sledgehammer to help move the fork closer together. When they struck the fork, the fork slid and pinched the tip of right thumb in a pinch point. Received stitches.
Impoundment Spot Inspection · 2.5 on-site hours
SLIP OR FALL OF PERSON · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was climbing a fixed ladder to enter the 14 ball mill hopper to perform maintenance. The ladder has a hinge with a pin near the top. The metal hinge broke. Employee held onto top part of ladder and fell, landing on EE's feet and then falling onto EE's rear. EE has a hair line compression fracture in the L1 and is on restricted duty.
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
A 3 inch diameter poly water pipe located in a plugged sump shifted, causing the pipe to flex while the employee was inspecting the plugged sump, this resulted in the pipe to contact the employees chin resulting in a laceration which required stitches.
56.9101 · S&S · $549.00 proposed
Non-Injury Accident Investigation · 1.0 on-site hours
Impoundment Spot Inspection · 1.3 on-site hours
POWERED HAULAGE · DAYS AWAY FROM WORK ONLY
Accident narrative
A 793 C haul truck was ascending a ramp loaded and lost traction. EE attempted to back up down the hill and contacted a berm which overturned truck. A bucket truck was used to help the EE exit the truck. The EE was entrapped in the cab more than 30 minutes. EE was suspended pending outcome of investigation.
MACHINERY · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
On drill 304, drill crew was tripping out tooling and preparing to remove the drill bit. The bit had been welded to the collar and the driller was using a handheld grinder to cut through the welds. As the grinder broke thru the welds, the grinding disc failed and a fragment struck a the driller on the finger causing a laceration.
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.
—
Montana Resources InccontrolsMontana Resources, LLCoperatesContinental Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 2400338—
Atlantic Richfield CompanycontrolsAnaconda Minerals CompanyoperatesContinental Mine
msha-controller-operator-history · controller/operator co-tenure derived on mine 2400338Other 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
240 historical accident/injury rows; 0 coded fatalities and 2,059 lost days across the published record.
ACCIDENT + INJURY RECORD55 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
1,378 violation rows across the full record; 233 carry an S&S flag and $507,720 appears in current assessed amounts.
ENFORCEMENT ACTIVITY107 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
258 personal; 14 area. 9 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 EXPOSURE272 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
224K employee hours and 430 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
168 contested-violation rows, 168 civil-penalty docket/decision rows, and 122 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE458 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 CONTEXT37 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
161 inspection events and 11K published inspection hours across the historical record.
OVERSIGHT COVERAGE42 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 59 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 |
|---|---|---|---|---|---|
| 000000202602356200 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Flotation/Concentrator Oper. | 0.53× published limitConcentration: 0000.41 · limit: 0000.77Source unit unspecified | Not reported | NO ACTIONInspection F029892 |
| 000000202601955500 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Crusher Oper/Worker | 0.31× published limitConcentration: 0000.13 · limit: 0000.42Source unit unspecified | Not reported | NO ACTIONInspection F029892 |
| 000000202601955700 | Metal/nonmetal personalQuartz, respirable, >1% Qtz | Crusher Oper/Worker | 0.78× published limitConcentration: 0000.38 · limit: 0000.49Source unit unspecified | Not reported | NO ACTIONInspection F029892 |
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 56.14112Construction and maintenance of guards.1 recent row ↗30 CFR 56.20003Housekeeping.1 recent row ↗30 CFR 56.4102Spillage and leakage.1 recent row ↗30 CFR 56.3200Correction of hazardous conditions.1 recent row ↗30 CFR 56.18013Emergency communications system.1 recent row ↗30 CFR 47.41Requirement for container labels.2 recent rows ↗30 CFR 56.14100Safety defects; examination, correction and records.1 recent row ↗30 CFR 56.4200General requirements.1 recent row ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
505603656.14112(b)Citation
505603556.20003(a)Citation
505603456.4102Citation
505603356.3200Citation
505338456.18013Citation
505338347.41(a)(1)Citation
505338256.14100(b)Citation
505338156.4200(a)(1)Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgDrill Operator, Rotary
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgBuilding Repair/Maint.
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Vanadium dustFlotation/Concentrator Oper.
C/E: 00.00Concentration: 0000.00 · limit: 0500.00Source unit unspecified
Nickel dust & saltsFlotation/Concentrator Oper.
C/E: 00.00Concentration: 0000.00 · limit: 0001.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors240Jan 7, 2000—Apr 22, 2026mine-keyed
Addresses of Recordidentity · logistics1May 24, 2004—May 24, 2004mine-keyed
Assessed Violationscompliance · legal1,367May 16, 2000—Jun 6, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal168Feb 23, 2006—Jul 20, 2020mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal122Jun 13, 2002—Apr 24, 2020mine-keyed
Contested Violationscompliance · legal168Jan 4, 2005—Jan 28, 2020mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety3,971Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety950Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance2Jan 1, 1950—Jul 1, 1986mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance309Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance79Not published—Not publishedmine-keyed
Inspectionssafety · compliance161May 15, 2000—Sep 11, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety14May 18, 2026—May 18, 2026mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety258Jun 15, 2004—Jun 6, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal1,378May 16, 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.