# Relationship history for MSHA mine 0202184

Current hierarchy: **Miller L Arden → Consolidated Mining & Milling Lt → Old Yuma 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:** Consolidated Mining & Milling Lt → Old Yuma Mine; 1983-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Miller L Arden → Old Yuma Mine; 1983-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Miller L Arden → Consolidated Mining & Milling Lt; 1983-11-01 to current/open; source msha-controller-operator-history