# Relationship history for MSHA mine 4003236

Current hierarchy: **James  Botbyl → Silvara Industries, Inc. → Peavine Quarry**

- 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:** Silvara Industries, Inc. → Peavine Quarry; 2004-07-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James  Botbyl → Peavine Quarry; 2004-07-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Botbyl → Silvara Industries, Inc.; 2004-07-06 to current/open; source msha-controller-operator-history