MINE DETAILS
Northshore Mining Company
MSHA MINE ID2100209
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Northshore Mining Company47.70853, -91.94460Open 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
568,982reported 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 | 88,880 | 0.00 | 181 | 1/1 mines reporting |
| 2025 Q2 | 0 | 92,552 | 0.00 | 182 | 1/1 mines reporting |
| 2025 Q3 | 0 | 97,191 | 0.00 | 191 | 1/1 mines reporting |
| 2025 Q4 | 0 | 91,529 | 0.00 | 190 | 1/1 mines reporting |
| 2026 Q1 | 0 | 92,627 | 0.00 | 186 | 1/1 mines reporting |
| 2026 Q2 | 0 | 106,203 | 0.00 | 206 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
201 significant & substantial (S&S)
Accident records
50 records classified as fatality
Proposed penalties · USD
5,681.0020 of 20 violations with amounts
On-site inspection hours
210.505 inspections · 5 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 | 7 | 1 | 2,304.00 | 1 | 0 | 2 | 115.8 |
| 2025-Q2 | 10 | 0 | 2,924.00 | 0 | 0 | 0 | — |
| 2025-Q3 | 0 | 0 | — | 0 | 0 | 0 | — |
| 2025-Q4 | 1 | 0 | 151.00 | 0 | 0 | 1 | 46.8 |
| 2026-Q1 | 0 | 0 | — | 1 | 0 | 1 | 45.8 |
| 2026-Q2 | 2 | 0 | 302.00 | 1 | 0 | 1 | 2.3 |
| 2026-Q3 | 0 | 0 | — | 2 | 0 | 0 | — |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
An employee pinched the pad of their left thumb while guiding a large crusher lifting clevis into its storage cradle, causing a jagged laceration in the pad of their thumb. Leather gloves were worn at the time of the incident.
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
The employee was walking down an embankment from a road when they tripped and fell forward, resulting in a broken ankle bone.
HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
EE was working in a rail lined bin replacing worn rails. As the EE was installing a new rail, the rail shifted and pinched the tips of the employees right middle finger and right ring finger resulting in a crushing type of injury requiring sutures. there were no fractures and nothing was broken.
103 (g) Written Notification Hazard Complaint Inspectio · 2.3 on-site hours
50.30(a) · $151.00 proposed
56.7002 · $151.00 proposed
Regular Safety and Health Inspection · 45.8 on-site hours
HANDLING OF MATERIALS · DYS AWY FRM WRK & RESTRCTD ACT
Accident narrative
Technician has lower left side back pain that radiates to the hip that started after the 993K engine tune-up technician was trying to install the engine turn tool. the technician's body is in a awkward position with head tilted and arms up against the engine block while on a 2 step ladder. After trying first aid, EE finally went to the clinic on 2-9-26.
56.14207 · $151.00 proposed
Regular Safety and Health Inspection · 46.8 on-site hours
56.4130(b) · $209.00 proposed
56.12068 · $313.00 proposed
56.12004 · $313.00 proposed
56.12032 · $697.00 proposed
56.12032 · $313.00 proposed
56.6202(a)(8)(iii) · $313.00 proposed
56.6202(a)(8)(iii) · $151.00 proposed
56.6202(a)(7) · $313.00 proposed
56.6202(a)(7) · $151.00 proposed
56.12004 · $151.00 proposed
56.14101(a)(3) · $313.00 proposed
56.14107 · $151.00 proposed
Regular Safety and Health Inspection · 64.8 on-site hours
56.11012 · $313.00 proposed
56.14207 · $313.00 proposed
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.
—
Cleveland-Cliffs InccontrolsNorthshore Mining CompanyoperatesNorthshore Mining Company
msha-controller-operator-history · controller/operator co-tenure derived on mine 2100209—
Cliffs Minnesota Minerals CompanycontrolsNorthshore Mining CompanyoperatesNorthshore Mining Company
msha-controller-operator-history · controller/operator co-tenure derived on mine 2100209—
Cyprus Amax Minerals CompanycontrolsCyprus Northshore Mining CorpoperatesNorthshore Mining Company
msha-controller-operator-history · controller/operator co-tenure derived on mine 2100209—
L T V Steel Corp et alcontrolsReserve Mining CompanyoperatesNorthshore Mining Company
msha-controller-operator-history · controller/operator co-tenure derived on mine 2100209—
Armco Inc et alcontrolsReserve Mining CompanyoperatesNorthshore Mining Company
msha-controller-operator-history · controller/operator co-tenure derived on mine 2100209Other 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
109 historical accident/injury rows; 0 coded fatalities and 1,895 lost days across the published record.
ACCIDENT + INJURY RECORD25 since 2021
accidentsmine-production-quarterly02 / COMPLIANCEwatch
Violations and penalties
680 violation rows across the full record; 114 carry an S&S flag and $158,815 appears in current assessed amounts.
ENFORCEMENT ACTIVITY104 since 2021
inspectionsviolationsassessed-violationsorders-107a03 / HEALTHwatch
Occupational health samples
332 personal; 11 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 EXPOSURE343 samples
personal-health-samplesarea-samples04 / PRODUCTIONcontext
Quarterly production and employment
106K employee hours and 206 summed average employees across reported subunits in the latest published quarter.
2026-Q20 tons
mine-production-quarterlymine-production-yearly05 / LEGALwatch
Contests, conferences and decisions
29 contested-violation rows, 30 civil-penalty docket/decision rows, and 9 conference records linked by issuance number.
POST-ISSUANCE LIFECYCLE68 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 CONTEXT29 linked entities
contractor-production-quarterlycontractor-production-yearlyaccidentsviolations07 / INSPECTIONScontext
Inspections
100 inspection events and 6K published inspection hours across the historical record.
OVERSIGHT COVERAGE18 since 2021
inspectionsviolationsHEALTH SAMPLING
Silica and quartz
Coal quartz, metal/nonmetal personal samples and area samples. Snapshot Oct 13, 2026. 66 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 50.30Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.1 recent row ↗30 CFR 56.7002Equipment defects.1 recent row ↗30 CFR 56.14207Parking procedures for unattended equipment.1 recent row ↗30 CFR 56.4130Electric substations and liquid storage facilities.1 recent row ↗30 CFR 56.12068Locking transformer enclosures.1 recent row ↗30 CFR 56.12004Electrical conductors.1 recent row ↗30 CFR 56.12032Inspection and cover plates.2 recent rows ↗30 CFR 56.6202Vehicles.4 recent rows ↗
RECENT PUBLIC RECORDS
Recent violations and samples
Latest records retained for inspection; aggregates above use the full source history.
969791950.30(a)Citation
969791856.7002Citation
969785456.14207Citation
888539056.4130(b)Citation
888538956.12068Citation
888538856.12004Citation
888538756.12032Citation
888538656.12032Citation
Coal dust, noise and other contaminants. Silica records above ↑
Respirable dust, <.1mgTruck Driver
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, <.1mgDrill Operator, Rotary
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgFront-end Loader 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, <.1mgMechanic
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
Respirable dust, <.1mgMechanic
C/E: 00.00Concentration: 0000.00 · limit: 0000.00Source unit unspecified
SOURCE COVERAGE
Reporting dates and coverage
16 datasets contain linked records. Missing datasets are listed below.
DATASETROWSWINDOWSTATUS
Accident, Injuries, and Illnessessafety · contractors109Mar 2, 2000—Sep 15, 2026mine-keyed
Addresses of Recordidentity · logistics1Sep 1, 1989—Sep 1, 1989mine-keyed
Assessed Violationscompliance · legal677Jan 5, 2000—Apr 14, 2026mine-keyed
Civil Penalty Dockets and Decisionscompliance · legal30Sep 21, 2000—Aug 12, 2021mine-keyed
Coal Dust Sampleshealth · safety—No published rowsabsent / not applicable
Conferencescompliance · legal9Oct 5, 2004—Oct 10, 2019mine-keyed
Contested Violationscompliance · legal29Jan 5, 2010—Feb 8, 2021mine-keyed
Contractor Employment and Production — Quarterlycontractors · production · safety4,142Not published—Not publishedentity-linked
Contractor Employment and Production — Yearlycontractors · production · safety922Not published—Not publishedentity-linked
Controller and Operator Historyidentity · compliance5Jan 1, 1950—May 14, 2008mine-keyed
Mine Employment and Production — Quarterlyproduction · safety · compliance212Not published—Not publishedmine-keyed
Mine Employment and Production — Yearlyproduction · safety · compliance54Not published—Not publishedmine-keyed
Inspectionssafety · compliance100Jan 4, 2000—May 18, 2026mine-keyed
Minesidentity · production · logistics1Not published—Not publishedmine-keyed
Metal and Nonmetal Area Sampleshealth · safety11Jul 15, 2014—Jul 16, 2014mine-keyed
Metal and Nonmetal Personal Health Sampleshealth · safety332Dec 13, 2000—Apr 14, 2026mine-keyed
Noise Sampleshealth · safety · equipment—No published rowsabsent / not applicable
Quartz Samples — Coalhealth · safety—No published rowsabsent / not applicable
Violationscompliance · safety · legal680Jan 5, 2000—Apr 14, 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.