# Relationship history for MSHA mine 0203287

Current hierarchy: **Lawrence  Mallek → Gila Concrete LLC → Slate Creek 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:** Gila Concrete LLC → Slate Creek Pit; 2011-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Shelly  Foell → Slate Creek Pit; 2011-06-01 to 2020-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Shelly  Foell → Gila Concrete LLC; 2011-06-01 to 2020-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Lawrence  Mallek → Slate Creek Pit; 2020-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lawrence  Mallek → Gila Concrete LLC; 2020-06-12 to current/open; source msha-controller-operator-history