# Relationship history for MSHA mine 4105686

Current hierarchy: **Alfredo M  Avalos → RA Materials LLC → Papalote Hills**

- 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:** Alfredo M  Avalos  Et Al → Papalote Hills; 2003-05-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** RA Materials LLC → Papalote Hills; 2023-04-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alfredo M  Avalos  Et Al → RA Materials LLC; 2023-04-26 to current/open; source msha-controller-operator-history