# Relationship history for MSHA mine 4104187

Current hierarchy: **Monty F  Getman → Monty Getman Inc → MGI SAND PIT #1**

- 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:** Monty Getman Inc → MGI SAND PIT #1; 2000-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Monty F  Getman → MGI SAND PIT #1; 2000-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Monty F  Getman → Monty Getman Inc; 2000-04-01 to current/open; source msha-controller-operator-history