# Relationship history for MSHA mine 1700640

Current hierarchy: **Richard  Jordan; Leslie  Jordan → JLC Mining → Narrow Gauge Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** JLC Mining → Narrow Gauge Pit; 1998-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Leslie  Jordan et al → Narrow Gauge Pit; 1998-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leslie  Jordan et al → JLC Mining; 1998-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Jordan et al → JLC Mining; 1998-08-01 to current/open; source msha-controller-operator-history