# Relationship history for MSHA mine 2601851

Current hierarchy: **Wolfin Louis → Avino Mines & Resources Ltd → Wonder 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:** Belmont Resources Inc Usa → Wonder Mine; 1983-07-01 to 1987-06-08; source msha-controller-operator-history
- **controller_controls_mine:** Black John-Steve Radvak Et Al → Wonder Mine; 1983-07-01 to 1987-06-08; source msha-controller-operator-history
- **controller_controls_operator:** Black John-Steve Radvak Et Al → Belmont Resources Inc Usa; 1983-07-01 to 1987-06-08; source msha-controller-operator-history
- **operator_operates_mine:** International Recovery Service Ltd → Wonder Mine; 1987-06-09 to 1988-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Thomson Robert G-Paul S Davis Et Al → Wonder Mine; 1987-06-09 to 1988-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Thomson Robert G-Paul S Davis Et Al → International Recovery Service Ltd; 1987-06-09 to 1988-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Avino Mines & Resources Ltd → Wonder Mine; 1989-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wolfin Louis → Wonder Mine; 1989-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wolfin Louis → Avino Mines & Resources Ltd; 1989-01-01 to current/open; source msha-controller-operator-history