# Relationship history for MSHA mine 5001706

Current hierarchy: **Michael A  Craft; Katheryn L  Craft → Chena Point Gravel Llc → Chena Point Gravel Llc**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Chena Point Gravel Llc → Chena Point Gravel Llc; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael A  Craft  et al → Chena Point Gravel Llc; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael A  Craft  et al → Chena Point Gravel Llc; 2001-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Katheryn L  Craft  et al → Chena Point Gravel Llc; 2001-06-01 to current/open; source msha-controller-operator-history