# Relationship history for MSHA mine 4608903

Current hierarchy: **Shaun  Allen → Appalachian Highwall Mining Llc → No 1**

- 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:** Appalachian Highwall Mining Llc → No 1; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Claude W  Allen  et al → No 1; 2001-06-01 to 2015-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Claude W  Allen  et al → Appalachian Highwall Mining Llc; 2001-06-01 to 2015-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Terry C  Marshall  et al → Appalachian Highwall Mining Llc; 2001-06-01 to 2015-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Shaun  Allen → No 1; 2016-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shaun  Allen → Appalachian Highwall Mining Llc; 2016-01-01 to current/open; source msha-controller-operator-history