# Relationship history for MSHA mine 0405282

Current hierarchy: **Alexander Redwood Partners, LLC → Humboldt Redwood Company LLC → Roads Extec 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:** The Pacific Lumber Company → Roads Extec Crusher; 1995-10-01 to 2008-08-17; source msha-controller-operator-history
- **controller_controls_mine:** Maxxam Inc → Roads Extec Crusher; 1995-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Maxxam Inc → The Pacific Lumber Company; 1995-10-01 to 2008-08-17; source msha-controller-operator-history
- **operator_operates_mine:** Humboldt Redwood Company LLC → Roads Extec Crusher; 2008-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Alexander Redwood Partners, LLC et al → Roads Extec Crusher; 2008-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alexander Redwood Partners, LLC et al → Humboldt Redwood Company LLC; 2008-08-18 to current/open; source msha-controller-operator-history