# Relationship history for MSHA mine 4003232

Current hierarchy: **Stone Depot Inc → Colored Stone Rock Quarry → Colored Stone Rock 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:** Colored Stone Rock Quarry → Colored Stone Rock Quarry; 2004-06-14 to 2006-04-08; source msha-controller-operator-history
- **controller_controls_mine:** Danny L  Brown → Colored Stone Rock Quarry; 2004-06-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Danny L  Brown → Colored Stone Rock Quarry; 2004-06-14 to 2006-04-08; source msha-controller-operator-history
- **operator_operates_mine:** Colored Stone Rock Quarry → Colored Stone Rock Quarry; 2006-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Stone Depot Inc → Colored Stone Rock Quarry; 2006-04-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stone Depot Inc → Colored Stone Rock Quarry; 2006-04-09 to current/open; source msha-controller-operator-history