# Relationship history for MSHA mine 2501313

Current hierarchy: **Kip  Arnold; James  Becker → Lostriver Sand & Gravel, Inc → Lowline**

- 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:** Lostriver Sand & Gravel, Inc → Lowline; 2020-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James  Becker Et Al → Lowline; 2020-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Becker Et Al → Lostriver Sand & Gravel, Inc; 2020-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kip  Arnold Et Al → Lostriver Sand & Gravel, Inc; 2020-09-03 to current/open; source msha-controller-operator-history