 A review completed in 2014 determined that new wolves would not be introduced into the park to attempt a genetic rescue, but as of December 2016, the National Park Service had instead decided to introduce 20 to 30 wolves to the island.In 2018, three females and one male wolf from Minnesota were transferred to the island system.Isle Royale National Park is made up of about 400 islands, and is in the northwest portion of Lake Superior.