# Relationship history for MSHA mine 2402565

Current hierarchy: **Scott  Schmiedeke; Mark O  Barteaux → Advanced Earthworks Inc → Mountain View Gravel Pit/Morten Pit**

- 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:** Advanced Earthworks Inc → Mountain View Gravel Pit/Morten Pit; 2010-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott  Schmiedeke et al → Mountain View Gravel Pit/Morten Pit; 2010-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Schmiedeke et al → Advanced Earthworks Inc; 2010-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark O  Barteaux et al → Advanced Earthworks Inc; 2010-04-29 to current/open; source msha-controller-operator-history