# Relationship history for MSHA mine 2602360

Current hierarchy: **Trimble Norris & Mark Ewanko → Coyote Mining Nevada Llc → COYOTE MINING NEVADA L.L.C.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Coyote Mining Nevada Llc → COYOTE MINING NEVADA L.L.C.; 1998-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Trimble Norris & Mark Ewanko Et Al → COYOTE MINING NEVADA L.L.C.; 1998-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trimble Norris & Mark Ewanko Et Al → Coyote Mining Nevada Llc; 1998-07-01 to current/open; source msha-controller-operator-history