# Relationship history for MSHA mine 4407099

Current hierarchy: **Steven M  Woods → C & S Construction & Excavating, Inc. → Jewell Valley Gob Pile Removal**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** C & S Construction & Excavating, Inc. → Jewell Valley Gob Pile Removal; 2004-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven M  Woods → Jewell Valley Gob Pile Removal; 2004-05-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven M  Woods → C & S Construction & Excavating, Inc.; 2004-05-12 to current/open; source msha-controller-operator-history