# Relationship history for MSHA mine 3200390

Current hierarchy: **Gene  Rosholt → Rosholt Gravel & Excavating → REYNOLDS 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:** Rosholt Construction → REYNOLDS PIT; 1950-01-01 to 1987-07-12; source msha-controller-operator-history
- **controller_controls_mine:** Sidney  Rosholt → REYNOLDS PIT; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sidney  Rosholt → Rosholt Construction; 1950-01-01 to 1987-07-12; source msha-controller-operator-history
- **operator_operates_mine:** Rosholt Gravel & Excavating → REYNOLDS PIT; 1987-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gene  Rosholt → REYNOLDS PIT; 1987-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gene  Rosholt → Rosholt Gravel & Excavating; 1987-07-13 to current/open; source msha-controller-operator-history