# Relationship history for MSHA mine 3304691

Current hierarchy: **Cris  Sidwell → Cumberland Limestone, LLC → Maysville Materials- Blaine**

- 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:** Cris  Sidwell → Maysville Materials- Blaine; 2005-03-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Thompson Mining Co. → Maysville Materials- Blaine; 2012-11-19 to 2016-03-20; source msha-controller-operator-history
- **controller_controls_mine:** George V  Thompson → Maysville Materials- Blaine; 2012-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George V  Thompson → Thompson Mining Co.; 2012-11-19 to 2016-03-20; source msha-controller-operator-history
- **operator_operates_mine:** Cumberland Limestone, LLC → Maysville Materials- Blaine; 2016-03-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cris  Sidwell → Cumberland Limestone, LLC; 2016-03-21 to current/open; source msha-controller-operator-history