# Relationship history for MSHA mine 4607054

Current hierarchy: **Cunlon Frank → Gold Star Mining Inc → #1 Strip**

- 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

- **operator_operates_mine:** Mary Jane Eyring Inc → #1 Strip; 1985-12-01 to 1986-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Eyring Mary Jane → #1 Strip; 1985-12-01 to 1986-06-27; source msha-controller-operator-history
- **controller_controls_operator:** Eyring Mary Jane → Mary Jane Eyring Inc; 1985-12-01 to 1986-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Gold Star Mining Inc → #1 Strip; 1986-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cunlon Frank → #1 Strip; 1986-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cunlon Frank → Gold Star Mining Inc; 1986-06-28 to current/open; source msha-controller-operator-history