# Relationship history for MSHA mine 3610034

Current hierarchy: **Shad B  Spencer → Greenwood Processing & Loading Complex, LLC → Bells Landing Tipple**

- 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:** Greenwood Processing & Loading Complex, LLC → Bells Landing Tipple; 2012-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Shad B  Spencer → Bells Landing Tipple; 2012-11-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shad B  Spencer → Greenwood Processing & Loading Complex, LLC; 2012-11-18 to current/open; source msha-controller-operator-history