# Relationship history for MSHA mine 5002043

Current hierarchy: **Don  Turner III → Turner Construction of Haines, Inc. → Turner Construction 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

- **operator_operates_mine:** Turner Construction of Haines, Inc. → Turner Construction Pit; 2015-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Don  Turner III et al → Turner Construction Pit; 2015-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Don  Turner III et al → Turner Construction of Haines, Inc.; 2015-12-15 to current/open; source msha-controller-operator-history