# Relationship history for MSHA mine 2602380

Current hierarchy: **Earl D  Harrison; Laraine  Griesel → Western Mine Development → VICTORINE 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:** Western Mine Development → VICTORINE MINE; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Earl D  Harrison et al → VICTORINE MINE; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Earl D  Harrison et al → Western Mine Development; 1999-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Laraine  Griesel et al → Western Mine Development; 1999-04-01 to current/open; source msha-controller-operator-history