# Relationship history for MSHA mine 3101468

Current hierarchy: **Sloop Jacob H H → Jacob H H Sloop Grading Incorporate → Sloops Gravel 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

- **operator_operates_mine:** Jacob H H Sloop Grading Incorporate → Sloops Gravel Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sloop Jacob H H → Sloops Gravel Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sloop Jacob H H → Jacob H H Sloop Grading Incorporate; 1950-01-01 to current/open; source msha-controller-operator-history