# Relationship history for MSHA mine 4406335

Current hierarchy: **Wesley D.  Burke → Southmountain Coal Company Inc → Southmountain No 2**

- 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:** Wesley D.  Burke et al → Southmountain No 2; 1982-10-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southmountain Coal Company Inc → Southmountain No 2; 1986-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wesley D.  Burke et al → Southmountain Coal Company Inc; 1986-09-01 to current/open; source msha-controller-operator-history