# Relationship history for MSHA mine 1519448

Current hierarchy: **Daniel G  Collins → C & W Land Development → C & W Land Development**

- 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:** C & W Land Development → C & W Land Development; 2009-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Daniel G  Collins → C & W Land Development; 2009-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel G  Collins → C & W Land Development; 2009-12-04 to current/open; source msha-controller-operator-history