"I photographed this beautiful cinder cone while touring the area north of Flagstaff, Arizona, in March and April 2010. It forms a striking pose looking over the surrounding grassy plains. The area that includes this cone and the more famous Sunset Crater is known as the San Francisco Volcanic Field. Eruptions in this field between the years 1040 and 1100 would have profoundly affected the way of life of the local inhabitants who witnessed these powerful geologic processes."
via epod.usra.edu
