# Relationship history for MSHA mine 3610237

Current hierarchy: **Donald H  Goble; Gary D  Goble → D & G Goble Excavating → Goble Mine**

- 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:** D & G Goble Excavating → Goble Mine; 2018-05-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Donald H  Goble et al → Goble Mine; 2018-05-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald H  Goble et al → D & G Goble Excavating; 2018-05-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary D  Goble et al → D & G Goble Excavating; 2018-05-03 to current/open; source msha-controller-operator-history