# Relationship history for MSHA mine 5002122

Current hierarchy: **Kyle Vance  Heaton; Bayley Rae  Heaton → Logjam Construction → Logjam 6.5 Mile Quarry**

- 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:** Logjam Construction → Logjam 6.5 Mile Quarry; 2026-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bayley Rae  Heaton et al → Logjam 6.5 Mile Quarry; 2026-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bayley Rae  Heaton et al → Logjam Construction; 2026-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kyle Vance  Heaton et al → Logjam Construction; 2026-06-18 to current/open; source msha-controller-operator-history