# Relationship history for MSHA mine 2003110

Current hierarchy: **Lee  Barr → Consolidated Crushed Stone, Inc. → Telsmith I**

- 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:** Consolidated Crushed Stone, Inc. → Telsmith I; 1999-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lee  Barr → Telsmith I; 1999-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lee  Barr → Consolidated Crushed Stone, Inc.; 1999-05-01 to current/open; source msha-controller-operator-history