← Yellowstone Mine

Yellowstone Mine safety activity

MSHA violations, accident reports and inspections.

2025-01-01 – 2026-10-28Database snapshot · 2026-10-28

Safety activity

  1. Handling of materials

    accidentRecord 220262020039

    Days away from work only

    Accident narrative

    Employee was cleaning up around conveyor belts C120 and C125, when they went to toss a partially filed shovel of dirt they felt a pop in their lower back.

  2. Boilers.

    violationRecord 8761105

    30 CFR 56.13030(b) · $151.00 proposed penalty

  3. Criteria—MSHA Form 7000-1, Section D.

    violationRecord 8761104

    30 CFR 50.20-7(b) · $151.00 proposed penalty

  4. Regular Safety and Health Inspection

    inspectionRecord F038C28

    14.0 on-site hours reported

  5. First-aid materials.

    violationRecord 8761103

    30 CFR 56.15001 · $151.00 proposed penalty

  6. Slip or fall of person

    accidentRecord 220260710012

    Days away from work only

    Accident narrative

    Driller was walking on the pattern and rolled EE's ankle as EE stepped on a frozen chunk of dirt. Operator fell to the ground got up and stated EE had rolled EE's ankle.

  7. Regular Safety and Health Inspection

    inspectionRecord F03028F

    10.5 on-site hours reported

  8. Other

    accidentRecord 220252510008

    Injuries due to natural causes

    Accident narrative

    While an employee was working on changing a tire on a haul truck the employee suddenly lost control and feeling in their right arm. Also felt fatigued and nauseas.

  9. Regular Safety and Health Inspection

    inspectionRecord F028C20

    18.5 on-site hours reported

Sources and definitions

MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).

Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.

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.