# Relationship history for MSHA mine 3003198

Current hierarchy: **Mario  Masciarelli → Center Village Gravel Corp → CENTER VILLAGE GRAVEL CORP.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Center Village Gravel Corp → CENTER VILLAGE GRAVEL CORP.; 1997-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mario  Masciarelli → CENTER VILLAGE GRAVEL CORP.; 1997-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mario  Masciarelli → Center Village Gravel Corp; 1997-08-01 to current/open; source msha-controller-operator-history