# Relationship history for MSHA mine 5000244

Current hierarchy: **Colas S A → Secon → AggPro Crusher**

- 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:** Juneau Ready Mix Inc → AggPro Crusher; 1950-01-01 to 1989-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert M  Scott → AggPro Crusher; 1950-01-01 to 1989-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert M  Scott → Juneau Ready Mix Inc; 1950-01-01 to 1989-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Juneau Ready Mix Inc → AggPro Crusher; 1990-01-01 to 2004-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Robert S  Lafavour et al → AggPro Crusher; 1990-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert S  Lafavour et al → Juneau Ready Mix Inc; 1990-01-01 to 2004-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Phil E  Godfrey et al → Juneau Ready Mix Inc; 1990-01-01 to 2004-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Gordon  Crawley → AggPro Crusher; 1995-03-01 to 2000-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Colas S A → AggPro Crusher; 2000-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Secon → AggPro Crusher; 2004-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Colas S A → Secon; 2004-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gordon  Crawley → Secon; 2004-07-15 to 2000-08-31; source msha-controller-operator-history