Sunday, November 05, 2006
Rugged Hills of Tucson
The Tucson Mountains are the rugged and jumbled remains of a volcanic caldera that slid off of what are now the Santa Catalina Mountains thanks to range-basin spreading over the last 50 million years or so. The Tucson Mountains have a high point just over 4,000 feet and are covered by desert vegitation including the Saguaro Cactii visible in this image. This hillside is near Gates Pass and this image was taken one morning on the way into work. The image was taken at 70mm focal length with an exposure of 1/1600 seconds at f/8, ISO 400.