The Grand Canyon is a UNESCO World Heritage Site that is located entirely in northern Arizona and is one of the great tourist attractions in the United States. The massive canyon encompasses several distinct areas, most famous of which is Grand Canyon National Park, a United States National Park. The national park is itself divided into two main areas: the remote North Rim and the more accessible (and therefore more crowded) South Rim. In addition, the southwestern end of the canyon is located within the borders of two Indian reservations: the Havasupai Indian Reservation and the Hualapai Indian Reservation (also known as Grand Canyon West). All of the sections of the canyon offer amenities for visitors, but the national park, and in particular the South Rim, is by far the most popular destination and the best equipped to handle the millions of yearly visitors.