Ben explains the geology of the San Francisco volcanic field
Camera model NIKON D70 Shutter speed 1/250 Aperture f/22.0 Maximum aperture f/4.3 Exposure bias 0.00 Exposure Normal program Focal length 40mm Flash Off Metering CenterWeightedAverage ISO sensitivity 200 Latitude 35.366158˚ N Longitude 111.52203˚ W Location Sunset Crater, Bonito Flow, Sunset Crater, Bonito Flow, Flagstaff, Coconino, Arizona, United States