Arizona's hidden side

Where the Old West meets the even Older West.

Millions of years of erosion created the feature for which this rock formation is aptly named.

The remains of a large pueblo village constructed by the Salado culture, who occupied the region more than 600 years ago.

Archaeologists believe this panel of petroglyphs depicting descending sheep and other figures in Glen Canyon are 3,000 to 6,000 years old.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.