# Relationship history for MSHA mine 2700550

Current hierarchy: **Cody  Gordon → Gordon Gravel and Stone LLC → Gilsum Pit**

- 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

- **controller_controls_mine:** Cooper G Gordon et al → Gilsum Pit; 2022-04-26 to 2025-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Gordon Gravel and Stone LLC → Gilsum Pit; 2025-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cooper G Gordon et al → Gordon Gravel and Stone LLC; 2025-02-10 to 2025-02-09; source msha-controller-operator-history
- **controller_controls_operator:** Cody K Gordon et al → Gordon Gravel and Stone LLC; 2025-02-10 to 2025-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Cody  Gordon → Gilsum Pit; 2025-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cody  Gordon → Gordon Gravel and Stone LLC; 2025-02-10 to current/open; source msha-controller-operator-history