# Relationship history for MSHA mine 0203114

Current hierarchy: **Curtis  Rogers → Green Valley Rock LLC → BEAVER DAM**

- 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:** Green Valley Rock LLC → BEAVER DAM; 2006-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Curtis  Rogers et al → BEAVER DAM; 2006-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Curtis  Rogers et al → Green Valley Rock LLC; 2006-02-08 to current/open; source msha-controller-operator-history