# Relationship history for MSHA mine 4801894

Current hierarchy: **Debbie  Huckins; Warren  Huckins → Iron Creek Services, LLC → Crusher**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Iron Creek Services, LLC → Crusher; 2025-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Debbie  Huckins et al → Crusher; 2025-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Debbie  Huckins et al → Iron Creek Services, LLC; 2025-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Warren  Huckins et al → Iron Creek Services, LLC; 2025-02-05 to current/open; source msha-controller-operator-history