# Relationship history for MSHA mine 0801387

Current hierarchy: **Russell  Anderson → South Florida Excavation, Inc. → Yard 3 Lely Development**

- 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:** South Florida Excavation, Inc. → Yard 3 Lely Development; 2010-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Russell  Anderson → Yard 3 Lely Development; 2010-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Russell  Anderson → South Florida Excavation, Inc.; 2010-07-08 to current/open; source msha-controller-operator-history