# Relationship history for MSHA mine 1103075

Current hierarchy: **Tim  Sonnentag → County Concrete Corporation → Pleasant Grove 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

- **controller_controls_mine:** Tim  Sonnentag et al → Pleasant Grove Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Roy David  Shoots et al → Pleasant Grove Pit; 1999-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shoots Farm & Excavation, Inc. → Pleasant Grove Pit; 2000-10-01 to 2005-08-29; source msha-controller-operator-history
- **controller_controls_operator:** Roy David  Shoots et al → Shoots Farm & Excavation, Inc.; 2000-10-01 to 2005-08-29; source msha-controller-operator-history
- **operator_operates_mine:** County Concrete Corporation → Pleasant Grove Pit; 2005-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tim  Sonnentag et al → County Concrete Corporation; 2005-08-30 to current/open; source msha-controller-operator-history