# Relationship history for MSHA mine 1001881

Current hierarchy: **Randy L McCall → North Idaho Crushing Inc → North Idaho Crushing Inc Plant #2**

- 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

- **controller_controls_mine:** Kurt  Mc Call  et al → North Idaho Crushing Inc Plant #2; 1986-03-01 to 2024-04-10; source msha-controller-operator-history
- **operator_operates_mine:** North Idaho Crushing Inc → North Idaho Crushing Inc Plant #2; 1992-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kurt  Mc Call  et al → North Idaho Crushing Inc; 1992-11-01 to 2024-04-10; source msha-controller-operator-history
- **controller_controls_mine:** Randy L McCall → North Idaho Crushing Inc Plant #2; 2024-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy L McCall → North Idaho Crushing Inc; 2024-04-11 to current/open; source msha-controller-operator-history