# Relationship history for MSHA mine 4503848

Current hierarchy: **Anthony N Jenks → RPC GRAVEL LLC → RPC GRAVEL PIT1**

- 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:** RPC GRAVEL LLC → RPC GRAVEL PIT1; 2024-02-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Anthony N Jenks → RPC GRAVEL PIT1; 2024-02-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony N Jenks → RPC GRAVEL LLC; 2024-02-21 to current/open; source msha-controller-operator-history