# Relationship history for MSHA mine 2402327

Current hierarchy: **Lenore  Menth → Menth Excavating Inc. → Menth Excavating**

- 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:** Menth Excavating Inc. → Menth Excavating; 2003-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lenore  Menth → Menth Excavating; 2003-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lenore  Menth → Menth Excavating Inc.; 2003-05-23 to current/open; source msha-controller-operator-history