# Relationship history for MSHA mine 3401805

Current hierarchy: **CRH PLC → Holliday Sand & Gravel → Plant #17 Indian Road**

- 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:** Larry D  Jones → Plant #17 Indian Road; 1986-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J & J Sand Company → Plant #17 Indian Road; 1998-01-01 to 2016-06-08; source msha-controller-operator-history
- **controller_controls_operator:** Larry D  Jones → J & J Sand Company; 1998-01-01 to 2016-06-08; source msha-controller-operator-history
- **controller_controls_mine:** Ash Grove Cement Company → Plant #17 Indian Road; 2008-08-01 to 2018-06-20; source msha-controller-operator-history
- **operator_operates_mine:** Holliday Sand & Gravel → Plant #17 Indian Road; 2016-06-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ash Grove Cement Company → Holliday Sand & Gravel; 2016-06-09 to 2018-06-20; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Plant #17 Indian Road; 2018-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Holliday Sand & Gravel; 2018-06-21 to current/open; source msha-controller-operator-history