Sunset Crater Volcano National Monument is a small protected area 12 miles north of Flagstaff. A visit to the national monument gives visitors a deeper look into the areas volcanic history and how it shaped the area. Sunset Crater Volcano National Monument features a 1,000 foot volcanic cone and its lava flows. These features and their surroundings can be experienced from five interesting trails throughout the monument. And don't miss the impressive overlook on the eastern edge of the monument boundary.