# Relationship history for MSHA mine 4503470

Current hierarchy: **Scott F  Anderson → Cascade Olympic Construction Inc → CENTRAL REDDI-MIX MAYTOWN PIT**

- 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:** Cascade Olympic Construction Inc → CENTRAL REDDI-MIX MAYTOWN PIT; 2001-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott F  Anderson → CENTRAL REDDI-MIX MAYTOWN PIT; 2001-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott F  Anderson → Cascade Olympic Construction Inc; 2001-03-01 to current/open; source msha-controller-operator-history