Kateri nacionalni parki imajo volkove?

There are 19 national parks in the continental United States that feature gray wolves in residence:Isle Royale National Park, North Cascades National Park, Sequoia and Kings Canyon National Parks, Yellowstone National Park, Crater Lake National Park, Mount Rainier National Park, Grand Teton National Park, Great Smoky Mountains National Park, Glacier National Park, Voyageurs National Park, Olympic National Park, Denali National Park, Great Basin National Park, Rocky Mountain National Park, Nacionalni park Hot Springs, vulkanski nacionalni park Lassen, nacionalni park Glacier Bay, nacionalni park Yosemite in Wrangell-St. Nacionalni park Elias.