Robert Swanson's photos with the keyword: adobe wall

This ancient "building" shows the effects of time and no upkeep. It was a major part of the culture that occupied the Arizona desert in and south of today's Phoenix. Fortunately, a cover was built over it to protect from further damage. The walls are made of adobe from the topsoil of the desert. It must have taken quite a large group of people to excavate, form the adobe "bricks" and then erect the walls of this structure. If you are in Arizona, be sure to visit the National Monument. www.nps.gov/cagr/index.htm Image processed with GIMP.