# Relationship history for MSHA mine 2003695

Current hierarchy: **Jeremy C Nyquist → Geomaterials LLC → Cedarapids**

- 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:** Geomaterials LLC → Cedarapids; 2025-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeremy C Nyquist → Cedarapids; 2025-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeremy C Nyquist → Geomaterials LLC; 2025-09-11 to current/open; source msha-controller-operator-history