# Relationship history for MSHA mine 4406911

Current hierarchy: **Chaney Enterprises LP → Sustainable Land Use, LLC → Charles City-VA 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

- **controller_controls_mine:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Charles City-VA Sand & Gravel; 1950-01-01 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Florida Rock Industries Inc → Charles City-VA Sand & Gravel; 1950-01-01 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Chaney Enterprises LP → Charles City-VA Sand & Gravel; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mary Schreiber  Cox  et al → Charles City-VA Sand & Gravel; 1984-08-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Custom Ltd → Charles City-VA Sand & Gravel; 1998-05-01 to 1999-06-10; source msha-controller-operator-history
- **controller_controls_operator:** Mary Schreiber  Cox  et al → Custom Ltd; 1998-05-01 to 1999-06-10; source msha-controller-operator-history
- **operator_operates_mine:** Florida Rock Industries Inc → Charles City-VA Sand & Gravel; 1999-06-11 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_operator:** Florida Rock Industries Inc → Florida Rock Industries Inc; 1999-06-11 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Vulcan Materials Company → Charles City-VA Sand & Gravel; 2007-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → Florida Rock Industries Inc; 2007-11-16 to 2007-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Vulcan Construction Materials, LP → Charles City-VA Sand & Gravel; 2007-11-16 to 2019-06-03; source msha-controller-operator-history
- **controller_controls_operator:** Vulcan Materials Company → Vulcan Construction Materials, LP; 2007-11-16 to 2019-06-03; source msha-controller-operator-history
- **controller_controls_operator:** Legacy Vulcan Corp (Form:Vulcan Materials Co) → Vulcan Construction Materials, LP; 2007-11-16 to 2007-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Michael A  Lamb → Charles City-VA Sand & Gravel; 2011-08-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stony Creek Sand and Gravel LLC → Charles City-VA Sand & Gravel; 2019-06-04 to 2021-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Michael A  Lamb → Stony Creek Sand and Gravel LLC; 2019-06-04 to 2021-10-04; source msha-controller-operator-history
- **operator_operates_mine:** Chaney Enterprises LTD Partnership → Charles City-VA Sand & Gravel; 2021-10-05 to 2024-03-25; source msha-controller-operator-history
- **controller_controls_operator:** Chaney Enterprises LP → Chaney Enterprises LTD Partnership; 2021-10-05 to 2024-03-25; source msha-controller-operator-history
- **controller_controls_mine:** Chaney Enterprises LP → Charles City-VA Sand & Gravel; 2024-03-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sustainable Land Use, LLC → Charles City-VA Sand & Gravel; 2024-03-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chaney Enterprises LP → Sustainable Land Use, LLC; 2024-03-26 to current/open; source msha-controller-operator-history