# Relationship history for MSHA mine 0202172

Current hierarchy: **Joseph  Carrabba; Randall  Huffsmith; (Lloyd) Joseph  Bardswich → Frisco Gold Corporation → Frisco Gold Corp 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

- **operator_operates_mine:** Frisco Land & Mining Company → Frisco Gold Corp Mine; 1983-10-01 to 2026-07-13; source msha-controller-operator-history
- **controller_controls_mine:** Bonelli B P → Frisco Gold Corp Mine; 1983-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bonelli B P → Frisco Land & Mining Company; 1983-10-01 to 2026-07-13; source msha-controller-operator-history
- **operator_operates_mine:** Frisco Gold Corporation → Frisco Gold Corp Mine; 2026-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Carrabba et al → Frisco Gold Corp Mine; 2026-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Carrabba et al → Frisco Gold Corporation; 2026-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randall  Huffsmith et al → Frisco Gold Corporation; 2026-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** (Lloyd) Joseph  Bardswich et al → Frisco Gold Corporation; 2026-07-14 to current/open; source msha-controller-operator-history