# Relationship history for MSHA mine 2602686

Current hierarchy: **Efrain Rene  Morales Moreno → Morales Construction Inc. → Morales Gravel 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:** Morales Construction Inc. → Morales Gravel Pit; 2010-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Megan  Morales → Morales Gravel Pit; 2010-08-05 to 2018-07-23; source msha-controller-operator-history
- **controller_controls_operator:** Megan  Morales → Morales Construction Inc.; 2010-08-05 to 2018-07-23; source msha-controller-operator-history
- **controller_controls_mine:** Efrain Rene  Morales Moreno → Morales Gravel Pit; 2018-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Efrain Rene  Morales Moreno → Morales Construction Inc.; 2018-07-24 to current/open; source msha-controller-operator-history