# Relationship history for MSHA mine 0405885

Current hierarchy: **Mark Richard  Turvey; Micah Richard  Turvey → Mark R. Turvey Equipment Rental Inc. → Turvey's Granite 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:** Mark R. Turvey Equipment Rental Inc. → Turvey's Granite Pit; 2014-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Micah Richard  Turvey et al → Turvey's Granite Pit; 2014-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Micah Richard  Turvey et al → Mark R. Turvey Equipment Rental Inc.; 2014-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark Richard  Turvey et al → Mark R. Turvey Equipment Rental Inc.; 2014-04-29 to current/open; source msha-controller-operator-history