One of many fossil filled boulders in the Clam Beds along Red Basin Trail in Petrified Forest National Park, Arizona, United States of America, North America

Large storm approaching Blue Mesa in Petrified Forest National Park, viewed from the Red Basin Trail, near Holbrook, Arizona, United States of America, North America

The eastern edge of the Clam Bed Mesa along the Red Basin Trail in Petrified Forest National Park, Arizona, United States of America, North America

The eastern edge of the Clam Bed Mesa along the Red Basin Trail in Petrified Forest National Park, Arizona, United States of America, North America

Red rock sandstone formations on the Grand Parade Trail, Kodachrome Basin State Park, Utah, United States of America, North America

A field of hoodoos along the Red Basin Trail in Petrified Forest National Park Arizona called Pharaoh's Garden.

A giant petrified log balanced on a sandstone pedestal in Petrified Forest National Park Arizona along the Red Basin Trail.

The shallow pond at Petrified Forest National Park Arizona called Dry Creek Tank along the Red Basin Trail.

View of Troll Hill at Petrified Forest National Park Arizona along the Red Basin Trail.

Slabs of stone along the Red Basin Trail called the Tabletops at Petrified Forest National Park Arizona.

California, Big Basin State Park, Man in orange jacket hiking in the redwoods.

California, Big Basin Redwoods State Park, Man biking on trail in woods.