# Relationship history for MSHA mine 1202436

Current hierarchy: **Craig  Goode → Fort Wayne Rocks, Inc. → Bluffton 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:** Fort Wayne Rocks, Inc. → Bluffton Quarry; 2010-08-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Craig  Goode → Bluffton Quarry; 2010-08-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craig  Goode → Fort Wayne Rocks, Inc.; 2010-08-31 to current/open; source msha-controller-operator-history