# Relationship history for MSHA mine 3004151

Current hierarchy: **Harry  Triebe Jr; Theresa  Burnham → SONNY & SONS STONE COMPANY LLC → KLONDIKE ROAD QUARRY**

- 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:** Harry  Triebe Jr et al → KLONDIKE ROAD QUARRY; 2012-03-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sonny & Sons Stone Company LLC → KLONDIKE ROAD QUARRY; 2025-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harry  Triebe Jr et al → Sonny & Sons Stone Company LLC; 2025-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Theresa  Burnham et al → Sonny & Sons Stone Company LLC; 2025-04-01 to current/open; source msha-controller-operator-history