# Relationship history for MSHA mine 2601752

Current hierarchy: **Thompson Marlon H Sr → Marlon H Thompson Sr → Gold Run 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

- **controller_controls_mine:** Dale  Aslett → Gold Run Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dale Aslett Sand & Gravel Inc → Gold Run Mine; 1981-06-01 to 1987-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Dale  Aslett → Dale Aslett Sand & Gravel Inc; 1981-06-01 to 1987-08-18; source msha-controller-operator-history
- **operator_operates_mine:** Marlon H Thompson Sr → Gold Run Mine; 1987-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Thompson Marlon H Sr → Gold Run Mine; 1987-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thompson Marlon H Sr → Marlon H Thompson Sr; 1987-08-19 to current/open; source msha-controller-operator-history