# Relationship history for MSHA mine 3002290

Current hierarchy: **Town Of Fenner-Ny → Town Of Fenner → Riedl Pit**

- 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:** Robert Riedl → Riedl Pit; 1950-01-01 to 1985-09-19; source msha-controller-operator-history
- **controller_controls_mine:** Riedl Robert J → Riedl Pit; 1950-01-01 to 1985-09-19; source msha-controller-operator-history
- **controller_controls_operator:** Riedl Robert J → Robert Riedl; 1950-01-01 to 1985-09-19; source msha-controller-operator-history
- **operator_operates_mine:** Town Of Fenner → Riedl Pit; 1985-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Town Of Fenner-Ny → Riedl Pit; 1985-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Town Of Fenner-Ny → Town Of Fenner; 1985-09-20 to current/open; source msha-controller-operator-history