# Relationship history for MSHA mine 4608890

Current hierarchy: **Patriot Coal Corporation → Rivers Edge Mining Inc → Rivers Edge Mine**

- 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:** Rivers Edge Mining Inc → Rivers Edge Mine; 2001-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peabody Energy Corporation → Rivers Edge Mine; 2001-04-01 to 2007-10-30; source msha-controller-operator-history
- **controller_controls_operator:** Peabody Energy Corporation → Rivers Edge Mining Inc; 2001-04-01 to 2007-10-30; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Rivers Edge Mine; 2007-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Rivers Edge Mining Inc; 2007-10-31 to current/open; source msha-controller-operator-history