# Relationship history for MSHA mine 3200841

Current hierarchy: **Ryan L  Wagner → James Valley Sand & Gravel → James Valley 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Davy  Bellin → James Valley Sand & Gravel; 2008-06-06 to 2023-01-25; source msha-controller-operator-history
- **operator_operates_mine:** James Valley Sand & Gravel → James Valley Sand & Gravel; 2008-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Davy  Bellin → James Valley Sand & Gravel; 2008-08-05 to 2023-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Ryan L  Wagner → James Valley Sand & Gravel; 2023-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan L  Wagner → James Valley Sand & Gravel; 2023-01-26 to current/open; source msha-controller-operator-history