# Relationship history for MSHA mine 1514435

Current hierarchy: **Craft Billy Don-Herbert Adams → Indian Creek Construction → No 1 Site**

- 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:** Indian Creek Construction → No 1 Site; 1984-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Craft Billy Don-Herbert Adams Et Al → No 1 Site; 1984-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craft Billy Don-Herbert Adams Et Al → Indian Creek Construction; 1984-01-01 to current/open; source msha-controller-operator-history