# Relationship history for MSHA mine 2103468

Current hierarchy: **Jon L  Beeck; Jim L  Beeck → Beecks Gravel & Excavating Inc → Crusher**

- 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:** Beecks Gravel & Excavating Inc → Crusher; 2004-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jon L  Beeck  et al → Crusher; 2004-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jon L  Beeck  et al → Beecks Gravel & Excavating Inc; 2004-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim L  Beeck  et al → Beecks Gravel & Excavating Inc; 2004-08-11 to current/open; source msha-controller-operator-history