# Relationship history for MSHA mine 1302166

Current hierarchy: **Jared  Anderson → Anderson Sand & Gravel LLC → Anderson Sand & Gravel LLC**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Anderson Sand & Gravel → Anderson Sand & Gravel LLC; 1989-05-01 to 2025-01-12; source msha-controller-operator-history
- **controller_controls_mine:** Bruce A  Anderson → Anderson Sand & Gravel LLC; 1989-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bruce A  Anderson → Anderson Sand & Gravel; 1989-05-01 to 2025-01-12; source msha-controller-operator-history
- **operator_operates_mine:** Anderson Sand & Gravel LLC → Anderson Sand & Gravel LLC; 2025-01-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jared  Anderson → Anderson Sand & Gravel LLC; 2025-01-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jared  Anderson → Anderson Sand & Gravel LLC; 2025-01-13 to current/open; source msha-controller-operator-history