Credit: Visitors watch as Pollen Trail Dancers perform a traditional dance at the Landmark and Tribal Medallion near Mather Point at the Grand Canyon in 2011. The number of visitors to the Grand Canyon National Park in Arizona fell from 6 million in 2019 to 2.9 million in 2020, the biggest drop of all the national parks. Tribes and tribal citizens manage tours, create and sell art, and operate hotels, restaurants, and gift shops. (Photo by Michael Quinn, National Park Service)
