# Relationship history for MSHA mine 3610197

Current hierarchy: **Ruth  Wargo; Joe  Wargo → Wargo Mining, LLC → Grape Run Exploration**

- 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:** Wargo Mining, LLC → Grape Run Exploration; 2016-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ruth  Wargo → Grape Run Exploration; 2016-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ruth  Wargo → Wargo Mining, LLC; 2016-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Wargo → Wargo Mining, LLC; 2016-12-05 to current/open; source msha-controller-operator-history