The Grand Canyon is in the northwest corner of Arizona, close to the borders of Utah and Nevada. Most of the Grand Canyon lies within Grand Canyon National Park and is managed by the National Park Service, the Hualapai Tribal Nation and the Havasupai Tribe.
The Colorado River, which flows through the canyon, touches seven states, but the Grand Canyon National Park is within the Arizona state borders. While Arizona is known as the Grand Canyon State, the attached Glen Canyon National Recreation Area is in Utah and the Lake Mead National Recreation Area borders the Grand Canyon in Nevada.