# Relationship history for MSHA mine 4103313

Current hierarchy: **Torres Felix & Rochelle Delley → Torres & Delley → Delley Pit**

- 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:** E & M Crushed Stone Inc → Delley Pit; 1985-05-01 to 1986-06-17; source msha-controller-operator-history
- **controller_controls_mine:** Emmons C E → Delley Pit; 1985-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Emmons C E → E & M Crushed Stone Inc; 1985-05-01 to 1986-06-17; source msha-controller-operator-history
- **operator_operates_mine:** Torres & Delley → Delley Pit; 1986-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Torres Felix & Rochelle Delley → Delley Pit; 1986-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Torres Felix & Rochelle Delley → Torres & Delley; 1986-06-18 to current/open; source msha-controller-operator-history