# Relationship history for MSHA mine 0103541

Current hierarchy: **Casey  Powell; Scott  Childs → Southern Rock and Aggregates, LLC → Pit #1**

- 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:** Southern Rock and Aggregates, LLC → Pit #1; 2020-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott  Childs et al → Pit #1; 2020-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Childs et al → Southern Rock and Aggregates, LLC; 2020-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Casey  Powell et al → Southern Rock and Aggregates, LLC; 2020-06-26 to current/open; source msha-controller-operator-history