# Relationship history for MSHA mine 2700160

Current hierarchy: **CRH PLC → Pike Industries → Pike Hill Quarry**

- 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:** Shaun P  Carroll → Pike Hill Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** L E Weed & Son, LLC → Pike Hill Quarry; 1950-01-01 to 2019-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Wayne M  Weed Et Al → Pike Hill Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wayne M  Weed Et Al → L E Weed & Son, LLC; 1950-01-01 to 2019-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Dianne M  Boucher Et Al → L E Weed & Son, LLC; 1950-01-01 to 2019-06-30; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Pike Hill Quarry; 1988-06-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Newport Sand & Gravel Co. Inc. → Pike Hill Quarry; 2019-07-01 to 2026-01-27; source msha-controller-operator-history
- **controller_controls_operator:** Shaun P  Carroll → Newport Sand & Gravel Co. Inc.; 2019-07-01 to 2026-01-27; source msha-controller-operator-history
- **operator_operates_mine:** Pike Industries → Pike Hill Quarry; 2026-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Pike Industries; 2026-01-28 to current/open; source msha-controller-operator-history