# Relationship history for MSHA mine 4801848

Current hierarchy: **Chris M Kusilek; Dianna J Kusilek → Ramsey Hill Exploration LLC → Crago Mine**

- 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:** Tim  Fallon et al → Crago Mine; 2015-04-06 to 2019-03-04; source msha-controller-operator-history
- **controller_controls_mine:** Chris M Kusilek et al → Crago Mine; 2019-03-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ramsey Hill Exploration LLC → Crago Mine; 2022-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tim  Fallon et al → Ramsey Hill Exploration LLC; 2022-02-28 to 2019-03-04; source msha-controller-operator-history
- **controller_controls_operator:** Peter  Venuta et al → Ramsey Hill Exploration LLC; 2022-02-28 to 2019-03-04; source msha-controller-operator-history
- **controller_controls_operator:** Chris M Kusilek et al → Ramsey Hill Exploration LLC; 2022-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dianna J Kusilek et al → Ramsey Hill Exploration LLC; 2022-02-28 to current/open; source msha-controller-operator-history