# Relationship history for MSHA mine 1519361

Current hierarchy: **Scott R  Ely; Mark D  Slaby → Meade County Quarry LLC → Meade County 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

- **operator_operates_mine:** Meade County Quarry LLC → Meade County Quarry; 2008-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott R  Ely et al → Meade County Quarry; 2008-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott R  Ely et al → Meade County Quarry LLC; 2008-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark D  Slaby et al → Meade County Quarry LLC; 2008-12-05 to current/open; source msha-controller-operator-history