# Relationship history for MSHA mine 2602508

Current hierarchy: **Robert J  Laughlin; Limon  Annis → Mojave Aggregate → Lucky Dutchman**

- 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:** Mojave Aggregate → Lucky Dutchman; 2002-09-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Limon  Annis et al → Lucky Dutchman; 2002-09-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Limon  Annis et al → Mojave Aggregate; 2002-09-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert J  Laughlin et al → Mojave Aggregate; 2002-09-24 to current/open; source msha-controller-operator-history