# Relationship history for MSHA mine 2104008

Current hierarchy: **Jay  Rickert → Rickert Excavating Inc. → Gores 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Rickert Excavating Inc. → Gores Pit; 2021-06-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jay  Rickert → Gores Pit; 2021-06-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jay  Rickert → Rickert Excavating Inc.; 2021-06-14 to current/open; source msha-controller-operator-history