# Relationship history for MSHA mine 4607566

Current hierarchy: **Arch Resources Inc → Juliana Mining Company LLC → Amos Run**

- 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:** Anker Group Inc → Amos Run; 1978-09-01 to 2006-01-19; source msha-controller-operator-history
- **operator_operates_mine:** Juliana Mining Company LLC → Amos Run; 1988-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anker Group Inc → Juliana Mining Company LLC; 1988-08-01 to 2006-01-19; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Amos Run; 2006-01-20 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Juliana Mining Company LLC; 2006-01-20 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Amos Run; 2011-06-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Juliana Mining Company LLC; 2011-06-15 to current/open; source msha-controller-operator-history