# Relationship history for MSHA mine 1519232

Current hierarchy: **Ryan O  Smith; Peter D  West → Gap Minerals LLC → Mine No 1**

- 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:** Gap Minerals LLC → Mine No 1; 2008-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peter D  West  et al → Mine No 1; 2008-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter D  West  et al → Gap Minerals LLC; 2008-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan O  Smith  et al → Gap Minerals LLC; 2008-05-13 to current/open; source msha-controller-operator-history