# Relationship history for MSHA mine 4605800

Current hierarchy: **Eskew Larry T → Cascade Associates Ltd → No 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:** Cascade Associates Ltd → No 1 Strip; 1978-08-01 to 1981-07-28; source msha-controller-operator-history
- **controller_controls_mine:** Dubin Alan → No 1 Strip; 1978-08-01 to 1981-07-28; source msha-controller-operator-history
- **controller_controls_operator:** Dubin Alan → Cascade Associates Ltd; 1978-08-01 to 1981-07-28; source msha-controller-operator-history
- **operator_operates_mine:** Cascade Associates Ltd → No 1 Strip; 1981-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eskew Larry T → No 1 Strip; 1981-07-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eskew Larry T → Cascade Associates Ltd; 1981-07-29 to current/open; source msha-controller-operator-history