# Relationship history for MSHA mine 1302488

Current hierarchy: **Brian H  Armstrong; Joe J  Manatt → INROADS LLC → INROADS 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** INROADS LLC → INROADS Sand & Gravel; 2020-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joe J  Manatt et al → INROADS Sand & Gravel; 2020-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe J  Manatt et al → INROADS LLC; 2020-04-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian H  Armstrong et al → INROADS LLC; 2020-04-14 to current/open; source msha-controller-operator-history