# Relationship history for MSHA mine 2602532

Current hierarchy: **Merl D  Hutchings; Jerry L  Bowers → Alma Mining LLC → Leona 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:** Alma Mining LLC → Leona Mine; 2003-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry L  Bowers  et al → Leona Mine; 2003-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry L  Bowers  et al → Alma Mining LLC; 2003-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Merl D  Hutchings  et al → Alma Mining LLC; 2003-12-06 to current/open; source msha-controller-operator-history