# Relationship history for MSHA mine 3503623

Current hierarchy: **Lynn T  Bettelyoun → Lynn Bettelyoun Trucking Paulina Peak S & G → Paulina Peak Sand & Gravel**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Lynn Bettelyoun Trucking Paulina Peak S & G → Paulina Peak Sand & Gravel; 2005-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lynn T Bettelyoun et al → Paulina Peak Sand & Gravel; 2005-09-07 to 2019-04-25; source msha-controller-operator-history
- **controller_controls_operator:** Lynn T Bettelyoun et al → Lynn Bettelyoun Trucking Paulina Peak S & G; 2005-09-07 to 2019-04-25; source msha-controller-operator-history
- **controller_controls_operator:** William R Bagley et al → Lynn Bettelyoun Trucking Paulina Peak S & G; 2005-09-07 to 2019-04-25; source msha-controller-operator-history
- **controller_controls_mine:** Lynn T  Bettelyoun → Paulina Peak Sand & Gravel; 2019-04-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lynn T  Bettelyoun → Lynn Bettelyoun Trucking Paulina Peak S & G; 2019-04-26 to current/open; source msha-controller-operator-history