Sunset Crater and Wupatki National Monument are just North of Flagstaff on the way to Page. Sunset Crater is whats left of what used to be an active volcano that last erupted around 1065. Wupatki National Monument preserves the many settlement sites scattered throughout the monument that were built by the Ancient Pueblo People, more specifically the Cohonina, Kayenta Anasazi, and Sinagua. Wupatki was first inhabited around 500 AD. Wupatki, which means “Tall House” in the Hopi language, is a multistory Sinagua pueblo dwelling comprising over 100 rooms and a community room and ball court, making it the largest building for nearly 50 miles.