# Relationship history for MSHA mine 4407204

Current hierarchy: **Carl K  Anderson; Loren B  Anderson → Mountain Ridge Mining, LLC → No. 1**

- 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:** Mountain Ridge Mining, LLC. → No. 1; 2007-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Loren B  Anderson et al → No. 1; 2007-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Loren B  Anderson et al → Mountain Ridge Mining, LLC.; 2007-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carl K  Anderson et al → Mountain Ridge Mining, LLC.; 2007-05-11 to current/open; source msha-controller-operator-history