Where is Lake Vermilion-Soudan Underground Mine State Park located?
Lake Vermilion-Soudan Underground Mine State Park, Lake Vermilion-Soudan Underground Mine State Park, United States of America (approx. 47.823334°, -92.23722°)
Lake Vermilion-Soudan Underground Mine State Park, Lake Vermilion-Soudan Underground Mine State Park, United States of America (approx. 47.823334°, -92.23722°)