# Relationship history for MSHA mine 3002334

Current hierarchy: **Heidelberg Materials AG → Hanson Aggregates New York Inc. → Red Creek**

- 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

- **controller_controls_mine:** Gene Dewitt Corporation → Red Creek; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** B R Dewitt Inc → Red Creek; 1979-01-01 to 1999-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Gene Dewitt Corporation → B R Dewitt Inc; 1979-01-01 to 1999-11-14; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Red Creek; 1988-11-14 to 2007-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates Brd Inc → Red Creek; 1999-11-15 to 2004-04-04; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Red Creek; 1999-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates Brd Inc; 1999-11-15 to 2004-04-04; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates Inc → Red Creek; 2004-04-05 to 2004-06-10; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates Inc; 2004-04-05 to 2004-06-10; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates New York Inc. → Red Creek; 2004-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates New York Inc.; 2004-06-11 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → Red Creek; 2007-08-23 to 2021-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Hanson Aggregates Inc; 2007-08-23 to 2004-06-10; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → Red Creek; 2007-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Hanson Aggregates New York Inc.; 2007-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → Red Creek; 2021-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Hanson Aggregates Inc; 2021-10-01 to 2004-06-10; source msha-controller-operator-history