# Relationship history for MSHA mine 1002304

Current hierarchy: **Ray D Pierce → Valley View Construction Inc. → Valley View Construction Inc.**

- 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:** Valley View Construction Inc. → Valley View Construction Inc.; 2018-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ray D Pierce → Valley View Construction Inc.; 2018-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ray D Pierce → Valley View Construction Inc.; 2018-08-15 to current/open; source msha-controller-operator-history