# Relationship history for MSHA mine 2601662

Current hierarchy: **Veta Grande Companies Inc → Veta Grande Companies Inc → Mohawk 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:** Veta Grande Companies Inc → Mohawk Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Spring Creek Mines → Mohawk Mine; 1980-07-01 to 1981-01-19; source msha-controller-operator-history
- **controller_controls_mine:** Mark E  Gavard et al → Mohawk Mine; 1980-07-01 to 1981-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Mark E  Gavard et al → Spring Creek Mines; 1980-07-01 to 1981-01-19; source msha-controller-operator-history
- **operator_operates_mine:** Veta Grande Companies Inc → Mohawk Mine; 1981-01-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Veta Grande Companies Inc → Veta Grande Companies Inc; 1981-01-20 to current/open; source msha-controller-operator-history