# Relationship history for MSHA mine 5001670

Current hierarchy: **Walter  Largent → R & M Mining → R & M Mining**

- 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:** R & M Mining → R & M Mining; 2000-08-01 to 2016-08-08; source msha-controller-operator-history
- **controller_controls_mine:** Walter  Largent et al → R & M Mining; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Walter  Largent et al → R & M Mining; 2000-08-01 to 2016-08-08; source msha-controller-operator-history
- **controller_controls_operator:** Roger  Moore et al → R & M Mining; 2000-08-01 to 2016-08-08; source msha-controller-operator-history
- **operator_operates_mine:** R & M Mining → R & M Mining; 2016-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Walter  Largent → R & M Mining; 2016-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Walter  Largent → R & M Mining; 2016-08-09 to current/open; source msha-controller-operator-history