# Relationship history for MSHA mine 4606318

Current hierarchy: **Larry A  Lough; Lewis E  Addair → Little Bear Mining Company Inc → No 3 Mine**

- 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:** Voest-Alpine International Corp → No 3 Mine; 1978-03-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Virginia Crews Coal Company → No 3 Mine; 1981-02-01 to 1987-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Voest-Alpine International Corp → Virginia Crews Coal Company; 1981-02-01 to 1987-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Sandy Creek Mining Inc → No 3 Mine; 1987-04-01 to 1987-07-12; source msha-controller-operator-history
- **controller_controls_mine:** Salyers Don → No 3 Mine; 1987-04-01 to 1987-07-12; source msha-controller-operator-history
- **controller_controls_operator:** Salyers Don → Sandy Creek Mining Inc; 1987-04-01 to 1987-07-12; source msha-controller-operator-history
- **controller_controls_mine:** Lewis E  Addair et al → No 3 Mine; 1987-06-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Little Bear Mining Company Inc → No 3 Mine; 1987-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lewis E  Addair et al → Little Bear Mining Company Inc; 1987-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry A  Lough et al → Little Bear Mining Company Inc; 1987-07-13 to current/open; source msha-controller-operator-history