Shoemaker would train astronauts during field trips to Meteor Crater and Sunset Crater near Flagstaff.
It is to the northwest of Sunset Crater.
Sunset Crater, Ariz.
It is endemic to Arizona, where it is known only from a system of volcanic cinder cones, including Sunset Crater, in Coconino County.
This plant grows only on volcanic fields around Sunset Crater in one Arizona county.
It is located near Sunset Crater, which erupted in 1066.
Sunset Crater volcanic eruptions; volcanic debris blankets Jemez Mountains and Bandelier area.
Sunset Crater erupts for the second time.
Sunset Crater is a volcanic cinder cone located north of Flagstaff in U.S. State of Arizona.
A one-mile (1.6 km) self-guided loop trail is located at the base of Sunset Crater but hiking to the summit is not permitted.
