# Relationship history for MSHA mine 3401902

Current hierarchy: **Pete  Fleps → Flagship Stone, LLC → Blaisdel Stone**

- 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:** Blaisdel Stone Inc → Blaisdel Stone; 2002-09-01 to 2023-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Brett  Blasdel → Blaisdel Stone; 2002-09-01 to 2018-06-19; source msha-controller-operator-history
- **controller_controls_operator:** Brett  Blasdel → Blaisdel Stone Inc; 2002-09-01 to 2018-06-19; source msha-controller-operator-history
- **controller_controls_mine:** Brett Blasdel Trust → Blaisdel Stone; 2018-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brett Blasdel Trust → Blaisdel Stone Inc; 2018-06-20 to 2023-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Pete  Fleps → Blaisdel Stone; 2020-02-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Flagship Stone, LLC → Blaisdel Stone; 2023-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pete  Fleps → Flagship Stone, LLC; 2023-07-01 to current/open; source msha-controller-operator-history