# Relationship history for MSHA mine 1101133

Current hierarchy: **VOTORANTIM CIMENTOS → VCNA Prairie LLC → Yard 57 - Paxton**

- 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

- **controller_controls_mine:** Charles H  Odle → Yard 57 - Paxton; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Howard Thomas Gravel Company → Yard 57 - Paxton; 1950-01-01 to 1991-08-06; source msha-controller-operator-history
- **controller_controls_mine:** Howard  Thomas → Yard 57 - Paxton; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Howard  Thomas → Howard Thomas Gravel Company; 1950-01-01 to 1991-08-06; source msha-controller-operator-history
- **controller_controls_mine:** Prairie Group → Yard 57 - Paxton; 1984-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Urban Sand & Gravel Company Inc → Yard 57 - Paxton; 1991-08-07 to 2000-02-10; source msha-controller-operator-history
- **controller_controls_operator:** Charles H  Odle → Urban Sand & Gravel Company Inc; 1991-08-07 to 2000-02-10; source msha-controller-operator-history
- **operator_operates_mine:** Prairie Material Sales, Inc. - Aggregate Division → Yard 57 - Paxton; 2000-02-11 to 2008-02-01; source msha-controller-operator-history
- **controller_controls_operator:** Prairie Group → Prairie Material Sales, Inc. - Aggregate Division; 2000-02-11 to 2008-02-01; source msha-controller-operator-history
- **operator_operates_mine:** VCNA Prairie LLC → Yard 57 - Paxton; 2008-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** VOTORANTIM CIMENTOS → Yard 57 - Paxton; 2008-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** VOTORANTIM CIMENTOS → VCNA Prairie LLC; 2008-02-02 to current/open; source msha-controller-operator-history