A small hill of gray bentonite clay that appears to be melting into the purple bentonite of Hamilili Valley on the south end of Petrified Forest National Park, Arizona, United States of America, North America
Gray clay flats below Anvil Hill west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America
Hoodoo filled cliffs on the north side of Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America