# Relationship history for MSHA mine 4702595

Current hierarchy: **Peterson Carl → Peterson Construction → Lind 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:** Ashland Construction Company Inc → Lind Pit; 1979-01-01 to 1981-06-03; source msha-controller-operator-history
- **controller_controls_mine:** Barany Joseph → Lind Pit; 1979-01-01 to 1981-06-03; source msha-controller-operator-history
- **controller_controls_operator:** Barany Joseph → Ashland Construction Company Inc; 1979-01-01 to 1981-06-03; source msha-controller-operator-history
- **operator_operates_mine:** Peterson Construction → Lind Pit; 1981-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peterson Carl → Lind Pit; 1981-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peterson Carl → Peterson Construction; 1981-06-04 to current/open; source msha-controller-operator-history