# Relationship history for MSHA mine 3610364

Current hierarchy: **Baltazar  Loja → Juan's Blue Stone → Sol 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:** Juan's Blue Stone → Sol Quarry; 2021-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Baltazar  Loja → Sol Quarry; 2021-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Baltazar  Loja → Juan's Blue Stone; 2021-04-06 to current/open; source msha-controller-operator-history