ACTIVE / CONTROLLER PORTFOLIO

Horizon Corporation

Membership and operating status are from the latest MSHA Mines snapshot. Open a mine for its ownership history.

MSHA CONTROLLER ID0176801

MINE PORTFOLIO

1 of 1 mines and facilities

2025-01-01 – 2026-10-13. Active records; production reporting is not required.

MineLocation / typeCoal · short tonsHours workedViolationsAccident recordsOn-site inspection hours
OK and Hidden Treasure4202431 · Active6/8 quarters reportedBeaver, UTSurface · MSHA: Copper Ore NEC0349,164992201.8

LOCATION

Mine location

1 of 1 mine with usable MSHA coordinates. Select a marker to open a mine.

Mine coordinates

2025-01-01 – 2026-10-13Applies to production, safety and portfolio metrics. Silica samples have separate filters.

Violations

99

25 significant & substantial (S&S)

  1. 2025 Q144
  2. 2025 Q216
  3. 2025 Q310
  4. 2025 Q410
  5. 2026 Q10
  6. 2026 Q219
  7. 2026 Q30
  8. 2026 Q4 *0

Accident records

2

0 records classified as fatality

  1. 2025 Q10
  2. 2025 Q20
  3. 2025 Q30
  4. 2025 Q41
  5. 2026 Q11
  6. 2026 Q20
  7. 2026 Q30
  8. 2026 Q4 *0

Proposed penalties · USD

111,213.00

97 of 99 violations with amounts

  1. 2025 Q141,031
  2. 2025 Q219,364
  3. 2025 Q319,457
  4. 2025 Q46,103
  5. 2026 Q1—
  6. 2026 Q225,258
  7. 2026 Q3—
  8. 2026 Q4 *—

On-site inspection hours

201.75

14 inspections · 14 with hours

  1. 2025 Q158.50
  2. 2025 Q233.50
  3. 2025 Q38.75
  4. 2025 Q441.00
  5. 2026 Q1—
  6. 2026 Q248.50
  7. 2026 Q311.50
  8. 2026 Q4 *—
Quarterly safety data
QuarterViolationsS&SProposed USDAccident recordsFatality recordsInspectionsOn-site hours
2025-Q1441741,031.0000258.5
2025-Q216419,364.0000133.5
2025-Q310419,457.000058.8
2025-Q41006,103.0010141.0
2026-Q100—100—
2026-Q219025,258.0000348.5
2026-Q300—00211.5
2026-Q4 *00—000—

Most cited CFR sections

All violations issued in the selected period. Counts combine subsections.

Safety activity

  1. inspectionF017BE8
    OK and Hidden Treasure · 4202431

    Impoundment Spot Inspection · 6.5 on-site hours

  2. inspectionF028618
    OK and Hidden Treasure · 4202431

    Verbal Hazard Complaint Inspections · 5.0 on-site hours

  3. inspectionF02860A
    OK and Hidden Treasure · 4202431

    Compliance Follow-up Inspection · 2.0 on-site hours

  4. violation5053075
    OK and Hidden Treasure · 4202431

    56.14100(b) · $151.00 proposed

  5. violation5053074
    OK and Hidden Treasure · 4202431

    56.14100(b) · $4,383.00 proposed

  6. violation5053073
    OK and Hidden Treasure · 4202431

    56.14100(b) · $4,383.00 proposed

  7. violation5053072
    OK and Hidden Treasure · 4202431

    56.14132(a) · $3,736.00 proposed

  8. violation5053071
    OK and Hidden Treasure · 4202431

    56.4200(b)(2) · $1,679.00 proposed

  9. violation5053070
    OK and Hidden Treasure · 4202431

    56.14132(a) · $3,736.00 proposed

  10. violation5055478
    OK and Hidden Treasure · 4202431

    47.41(a) · $313.00 proposed

  11. violation5055477
    OK and Hidden Treasure · 4202431

    56.4101 · $465.00 proposed

  12. violation5055476
    OK and Hidden Treasure · 4202431

    56.4201(a)(2) · $151.00 proposed

  13. violation5053069
    OK and Hidden Treasure · 4202431

    56.14100(b) · $465.00 proposed

  14. violation5053068
    OK and Hidden Treasure · 4202431

    56.12008 · $465.00 proposed

  15. violation5055475
    OK and Hidden Treasure · 4202431

    56.12032 · $1,550.00 proposed

  16. violation5055474
    OK and Hidden Treasure · 4202431

    47.41(a) · $313.00 proposed

  17. violation5055473
    OK and Hidden Treasure · 4202431

    56.14100(d) · $151.00 proposed

  18. violation5055472
    OK and Hidden Treasure · 4202431

    56.14132(a) · $465.00 proposed

  19. violation5055471
    OK and Hidden Treasure · 4202431

    56.12032 · $1,037.00 proposed

  20. violation5055470
    OK and Hidden Treasure · 4202431

    56.14100(d) · $465.00 proposed

  21. violation5055469
    OK and Hidden Treasure · 4202431

    47.41(a) · $313.00 proposed

  22. violation5053067
    OK and Hidden Treasure · 4202431

    56.16006 · $1,037.00 proposed

  23. inspectionF028609
    OK and Hidden Treasure · 4202431

    Verbal Hazard Complaint Inspections · 0.0 on-site hours

  24. inspectionF028608
    OK and Hidden Treasure · 4202431

    Regular Safety and Health Inspection · 46.5 on-site hours

  25. accident220260440004
    OK and Hidden Treasure · 4202431

    POWERED HAULAGE · DAYS AWAY FROM WORK ONLY

    Accident narrative

    A water truck air hose burst & the brakes locked on while going down a dirt road, incline 5.35%. The driver thought the brakes weren't working. EE tried the foot pedal & air actuator & gearing down. Once in neutral EE could not get it back in gear. EE steered the truck off road and jumped while going around 15-20 mph. Driver strained EE's hamstring.

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 operator.

Relationships reflect the selected mine status and current MSHA controller/operator fields.