# Relationship history for MSHA mine 1701032

Current hierarchy: **All States Materials Group → Auburn Asphalt, LLC → Auburn Asphalt- Litchfield**

- 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:** Midland Land Devlopment, LLC → Auburn Asphalt- Litchfield; 2020-06-05 to 2025-04-08; source msha-controller-operator-history
- **controller_controls_mine:** Richard  Miller → Auburn Asphalt- Litchfield; 2020-06-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard  Miller → Midland Land Devlopment, LLC; 2020-06-05 to 2025-04-08; source msha-controller-operator-history
- **operator_operates_mine:** Auburn Asphalt, LLC → Auburn Asphalt- Litchfield; 2025-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** All States Materials Group → Auburn Asphalt- Litchfield; 2025-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** All States Materials Group → Auburn Asphalt, LLC; 2025-04-09 to current/open; source msha-controller-operator-history