# Relationship history for MSHA mine 1601258

Current hierarchy: **Lynn  Evans → Norris Springs Gravel LLC → # 2 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Ernest  Kiper → # 2 Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sicily Island Gravel Corp → # 2 Pit; 1993-03-01 to 2004-01-08; source msha-controller-operator-history
- **controller_controls_operator:** Ernest  Kiper → Sicily Island Gravel Corp; 1993-03-01 to 2004-01-08; source msha-controller-operator-history
- **controller_controls_mine:** Lynn  Evans → # 2 Pit; 2003-03-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Norris Springs Gravel LLC → # 2 Pit; 2004-01-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lynn  Evans → Norris Springs Gravel LLC; 2004-01-09 to current/open; source msha-controller-operator-history