Coal production
0reported short tons
ACTIVE / OPERATOR PORTFOLIO
Tilden Mining Company, LC.
Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.
MSHA OPERATOR IDL11087
MINE PORTFOLIO
1 of 1 mines and facilities
2025-01-01 – 2026-10-13. Active records; production reporting is not required.
Material, method and type filters apply to this table. The portfolio’s status applies to the entire page. GEM fields describe their own release, not the selected MSHA year.
| Mine | Location / type | Coal · short tons | Hours worked | Violations | Accident records | On-site inspection hours |
|---|---|---|---|---|---|---|
| Tilden Mine2000422 · Active6/8 quarters reported | Marquette, MISurface · MSHA: Iron Ore | 0 | 2,869,104 | 484 | 36 | 1,312.0 |
Production and hours sum available quarterly reports. — means unavailable; zero safety records means none in the selected imported period. Ownership reflects the current MSHA record.
LOCATION
Mine location
1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.
Mine coordinates
- Tilden Mine46.38944, -87.63611Open map ↗
Quarterly trends
2025 Q1 – 2026 Q4
Database snapshot · 2026-10-13. All 1 mines listed under this operator were checked; 1 have reports in the available quarters. Totals use current ownership.
Hours worked
2,869,104reported 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 | 478,375 | 0.00 | 801 | 1/1 mines reporting |
| 2025 Q2 | 0 | 479,162 | 0.00 | 790 | 1/1 mines reporting |
| 2025 Q3 | 0 | 460,029 | 0.00 | 776 | 1/1 mines reporting |
| 2025 Q4 | 0 | 470,509 | 0.00 | 789 | 1/1 mines reporting |
| 2026 Q1 | 0 | 500,419 | 0.00 | 860 | 1/1 mines reporting |
| 2026 Q2 | 0 | 480,610 | 0.00 | 884 | 1/1 mines reporting |
| 2026 Q3 | — | — | — | — | No report |
| 2026 Q4 | — | — | — | — | No report |
Safety and enforcement
2025-01-01 – 2026-10-13
Violations
48463 significant & substantial (S&S)
Accident records
360 records classified as fatality
Proposed penalties · USD
706,946.00483 of 484 violations with amounts
On-site inspection hours
1,312.0031 inspections · 31 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 | 76 | 7 | 97,678.00 | 8 | 0 | 3 | 289.5 |
| 2025-Q2 | 76 | 4 | 176,740.00 | 3 | 0 | 3 | 17.3 |
| 2025-Q3 | 10 | 1 | 19,972.00 | 5 | 0 | 5 | 19.8 |
| 2025-Q4 | 55 | 10 | 105,938.00 | 6 | 0 | 5 | 470.0 |
| 2026-Q1 | 112 | 13 | 129,807.00 | 4 | 0 | 8 | 61.8 |
| 2026-Q2 | 155 | 28 | 176,811.00 | 5 | 0 | 4 | 439.3 |
| 2026-Q3 | 0 | 0 | — | 5 | 0 | 3 | 14.5 |
| 2026-Q4 * | 0 | 0 | — | 0 | 0 | 0 | — |
Most cited CFR sections
All violations issued in the selected period. Counts combine subsections.
Safety activity
- Tilden Mine · 2000422
103 (g) Written Notification Hazard Complaint Inspectio · 6.8 on-site hours
- Tilden Mine · 2000422
Impoundment Spot Inspection · 4.3 on-site hours
- Tilden Mine · 2000422
HANDTOOLS (NONPOWERED) · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Employee was using a prybar in an upward forward motion to remove a middle impact roller for 2CV when the prybar slipped out causing the employee to strike their right middle finger against an overhead steel channel. Employee was sent to the hospital for imaging which revealed fracture. Employee's finger was dressed and immobilized with a splint and employee returned to work.
- Tilden Mine · 2000422
HANDLING OF MATERIALS · NO DYS AWY FRM WRK,NO RSTR ACT
Accident narrative
Two employees were installing a plastic deflector sheet into a chute and were lowering the deflector by hand. The deflector became wedged in the chute and when it dislodged, it dropped and pinched the employee's right thumb.
- Tilden Mine · 2000422
POWERED HAULAGE · DAYS RESTRICTED ACTIVITY ONLY
Accident narrative
Employee was operating loader 49 on the north wall of the Tilden Main Pit when they contacted a large boulder in the dig face with the loader bucket causing the employee pain in their right shoulder from being jarred. Employee was wearing their seat belt at the time of the incident. Employee was prescribed restrictions to wear a sling and limit lifting with right arm to < 10 lbs.
- Tilden Mine · 2000422
Verbal Hazard Complaint Inspections · 3.5 on-site hours
- Tilden Mine · 2000422
HANDLING OF MATERIALS · PERM TOT OR PERM PRTL DISABLTY
Accident narrative
Employee was lifting filter sections from machine and felt something pop followed by tightness in their lower abdomen. Employee was evaluated by site nurse and sent to local hospital where ultrasound revealed fat containing hernia.
- Tilden Mine · 2000422
SLIP OR FALL OF PERSON · DAYS AWAY FROM WORK ONLY
Accident narrative
Operator was cleaning in the Primary Crusher basement when they stumbled on a rock on the floor causing fall. Employee reported after getting up, shoulder fell out of socket causing pain. Employee self-relocated shoulder and was evaluated by site EMT and transported to local ED for imaging which revealed bone fragments and degenerative mineralization and tendon calcification.
- Tilden Mine · 2000422
56.4101 · $267.00 proposed
- Tilden Mine · 2000422
56.20003(a) · S&S · $6,540.00 proposed
- Tilden Mine · 2000422
56.11003 · $177.00 proposed
- Tilden Mine · 2000422
56.14100(a) · S&S · $313.00 proposed
- Tilden Mine · 2000422
56.14101(a)(2) · S&S · $313.00 proposed
- Tilden Mine · 2000422
56.15004 · S&S · $151.00 proposed
- Tilden Mine · 2000422
56.9300(d)(1) · $177.00 proposed
- Tilden Mine · 2000422
56.4101 · $267.00 proposed
- Tilden Mine · 2000422
56.4101 · $267.00 proposed
- Tilden Mine · 2000422
56.14107(a) · $465.00 proposed
- Tilden Mine · 2000422
56.14112(b) · $549.00 proposed
- Tilden Mine · 2000422
56.14112(b) · $1,219.00 proposed
- Tilden Mine · 2000422
56.14112(b) · $1,219.00 proposed
- Tilden Mine · 2000422
56.14107(a) · $1,037.00 proposed
- Tilden Mine · 2000422
56.4603(b) · $177.00 proposed
- Tilden Mine · 2000422
56.14112(b) · $549.00 proposed
- Tilden Mine · 2000422
56.14112(b) · $549.00 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.
SELECTED PORTFOLIO
1 linked controller.
Relationships reflect the selected mine status and current MSHA controller/operator fields.