# Relationship history for MSHA mine 4103576

Current hierarchy: **Scott Jason H → Hardin County Materials → OLD LILLARD 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:** Hardin County Materials → OLD LILLARD PIT; 1989-03-01 to 1995-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Scott Nelda → OLD LILLARD PIT; 1989-03-01 to 1995-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Scott Nelda → Hardin County Materials; 1989-03-01 to 1995-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Hardin County Materials → OLD LILLARD PIT; 1995-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott Jason H → OLD LILLARD PIT; 1995-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott Jason H → Hardin County Materials; 1995-03-01 to current/open; source msha-controller-operator-history