# Relationship history for MSHA mine 3608425

Current hierarchy: **William B  Spence → Allegheny Valley Resources Inc → Russellton 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

- **operator_operates_mine:** Allegheny Valley Resources Inc → Russellton Mine; 1993-07-01 to 1994-09-08; source msha-controller-operator-history
- **controller_controls_mine:** Gizienski Joseph D → Russellton Mine; 1993-07-01 to 1994-09-08; source msha-controller-operator-history
- **controller_controls_operator:** Gizienski Joseph D → Allegheny Valley Resources Inc; 1993-07-01 to 1994-09-08; source msha-controller-operator-history
- **operator_operates_mine:** Allegheny Valley Resources Inc → Russellton Mine; 1994-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** William B  Spence → Russellton Mine; 1994-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William B  Spence → Allegheny Valley Resources Inc; 1994-09-09 to current/open; source msha-controller-operator-history