# Relationship history for MSHA mine 4703985

Current hierarchy: **Mitchell D  Wilson → Mountain Stone Works, LLC. → Metso - Doty**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Mark D  Wilson et al → Metso - Doty; 2022-04-06 to 2024-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Mitchell D  Wilson → Metso - Doty; 2025-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Stone Works LLC → Metso - Doty; 2025-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark D  Wilson et al → Mountain Stone Works LLC; 2025-08-26 to 2024-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Mitchell D  Wilson et al → Mountain Stone Works LLC; 2025-08-26 to 2024-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Mitchell D  Wilson → Mountain Stone Works LLC; 2025-08-26 to current/open; source msha-controller-operator-history