# Relationship history for MSHA mine 0203030

Current hierarchy: **Jon K  Harms; Stan  Birch → J & S Gold Nugget Mine LLC → Gold Nugget 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:** J & S Gold Nugget Mine LLC → Gold Nugget Mine; 2004-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stan  Birch et al → Gold Nugget Mine; 2004-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stan  Birch et al → J & S Gold Nugget Mine LLC; 2004-01-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jon K  Harms et al → J & S Gold Nugget Mine LLC; 2004-01-25 to current/open; source msha-controller-operator-history