# Relationship history for MSHA mine 0301871

Current hierarchy: **Larry C  Nelson → Flagstone Heights Inc → Flagstone Heights Inc**

- 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:** Flagstone Heights Inc → Flagstone Heights Inc; 2003-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry C  Nelson → Flagstone Heights Inc; 2003-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry C  Nelson → Flagstone Heights Inc; 2003-04-02 to current/open; source msha-controller-operator-history