# Relationship history for MSHA mine 4702700

Current hierarchy: **Julian V  Hagen → Hagen, Inc. → Hagen 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:** Jack Hagen Sand & Gravel → Hagen Pit; 1980-08-01 to 2001-10-23; source msha-controller-operator-history
- **controller_controls_mine:** Jack  Hagen → Hagen Pit; 1980-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Hagen → Jack Hagen Sand & Gravel; 1980-08-01 to 2001-10-23; source msha-controller-operator-history
- **operator_operates_mine:** Hagen, Inc. → Hagen Pit; 2001-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Julian V  Hagen → Hagen Pit; 2001-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Julian V  Hagen → Hagen, Inc.; 2001-10-24 to current/open; source msha-controller-operator-history