# Relationship history for MSHA mine 3004031

Current hierarchy: **Steven A  Fairchild → Steven Fairchild Bluestone → Ellis Road Mine**

- 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:** Steven Fairchild Bluestone → Ellis Road Mine; 2019-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven A  Fairchild → Ellis Road Mine; 2019-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven A  Fairchild → Steven Fairchild Bluestone; 2019-04-02 to current/open; source msha-controller-operator-history