# Relationship history for MSHA mine 3503671

Current hierarchy: **Jim  Chase; John  Larsen → Viking Mining & Resources, LLC. → Griffin/Dooley Placers**

- 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:** Viking Mining & Resources, llc → Griffin/Dooley Placers; 2007-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Chase et al → Griffin/Dooley Placers; 2007-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Chase et al → Viking Mining & Resources, llc; 2007-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Larsen et al → Viking Mining & Resources, llc; 2007-07-16 to current/open; source msha-controller-operator-history