# Relationship history for MSHA mine 1701076

Current hierarchy: **Steven J  Cantwell; Sean  Jenkins → Maine Rock and Recycling LLC → Brown Quarry**

- 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:** Maine Rock and Recycling LLC → Brown Quarry; 2022-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sean  Jenkins et al → Brown Quarry; 2022-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sean  Jenkins et al → Maine Rock and Recycling LLC; 2022-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven J  Cantwell et al → Maine Rock and Recycling LLC; 2022-11-02 to current/open; source msha-controller-operator-history