# Relationship history for MSHA mine 2003309

Current hierarchy: **Gregory H.  Causley → Causley Trucking Inc dba Causley Excavating → Curran 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:** Causley Excavating → Curran Pit; 2004-11-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gregory H.  Causley → Curran Pit; 2004-11-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gregory H.  Causley → Causley Excavating; 2004-11-04 to current/open; source msha-controller-operator-history