# Relationship history for MSHA mine 2902315

Current hierarchy: **Gill E  Vigil → Vigil's Asphalt & Gravel, LLC → #1 Crusher Vigil Mine**

- 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:** Choice Aggregate → #1 Crusher Vigil Mine; 2006-04-17 to 2008-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Gill E  Vigil → #1 Crusher Vigil Mine; 2006-04-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gill E  Vigil → Choice Aggregate; 2006-04-17 to 2008-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Vigil's Asphalt & Gravel, LLC → #1 Crusher Vigil Mine; 2009-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gill E  Vigil → #1 Crusher Vigil Mine; 2009-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gill E  Vigil → Vigil's Asphalt & Gravel, LLC; 2009-01-01 to current/open; source msha-controller-operator-history