October the monument is open from 8:00 a.m. to 5:00 p.m. MST and is open from 9:00 a.m. to 5:00 p.m. MST the remainder of the year. Entry to park trails closes 1 hour before the monument closes. The Walnut Canyon site is near Flagstaff. It is 7 miles east of I-40 and 3 miles south of exit 204. The park has a museum and a small visitor center atop a cliff. Many of the ancient dwellings were built around a U-shaped meander in the canyon, where the creek circles around three sides of a high rocky plateau, almost creating an 'island', and this region now forms the central attraction of the national monument. There are other ruins in the surround area which are not open to the public. Other dwellings of the Sinagua people can be found in the nearby Tuzigoot and Montezuma Castle monuments. The Old Headquarters is listed on the National Register of Historic Places. See also List of national monuments of the United States References External links Walnut Canyon National Monument. Official NPS website. American Southwest, a National Park Service Discover Our Shared Heritage Travel Itinerary National Park Service National Monuments in Arizona Cliff dwellings Canyons and gorges of Arizona Landforms of Coconino County, Arizona Museums in Coconino County, Arizona Ancient Puebloan archaeological sites in Arizona Native American museums in Arizona Parks in Arizona Archaeological sites on the National Register of Historic Places in Arizona National Register of Historic Places in Coconino County, Arizona 1915 establishments in Arizona Protected areas established in 1915 Protected areas of Coconino County, Arizona Former populated places in Coconino County, Arizona Historic districts on the National Register of Historic Places in Arizona Sinagua