# Relationship history for MSHA mine 4104973

Current hierarchy: **Jose  Rangel → Rangel Stone-Masonry → Tree Top**

- 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:** Rangel Stone-Masonry → Tree Top; 2012-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jose  Rangel → Tree Top; 2012-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jose  Rangel → Rangel Stone-Masonry; 2012-11-26 to current/open; source msha-controller-operator-history