# Relationship history for MSHA mine 1601462

Current hierarchy: **Travis Len  Joiner → Construction Aggregates LLC → Smith Plant**

- 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

- **controller_controls_mine:** Travis Len  Joiner → Smith Plant; 2006-11-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Construction Aggregates LLC → Smith Plant; 2007-06-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Travis Len  Joiner → Construction Aggregates LLC; 2007-06-13 to current/open; source msha-controller-operator-history