# Relationship history for MSHA mine 4609202

Current hierarchy: **Perry  Queener → Eagle Ridge Development Group LLC → Beury Mountain Mine No 3**

- 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

- **controller_controls_mine:** Perry  Queener et al → Beury Mountain Mine No 3; 2004-08-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eagle Ridge Development Group LLC → Beury Mountain Mine No 3; 2007-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Perry  Queener et al → Eagle Ridge Development Group LLC; 2007-02-16 to current/open; source msha-controller-operator-history