# Relationship history for MSHA mine 0405462

Current hierarchy: **Maxxam Inc → Pacific Lumber Company → Carlotta Wash Plant**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Maxxam Inc → Carlotta Wash Plant; 1995-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pacific Lumber Company → Carlotta Wash Plant; 2000-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Maxxam Inc → Pacific Lumber Company; 2000-09-01 to current/open; source msha-controller-operator-history