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Petrified Forest National Park, Blue Mesa, Blue Mesa Trail, sedimentary layers of bluish bentonite clay
Sedimentary layers of bluish bentonite clay, Blue Mesa Trail, Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America
Woman standing in the sandstone chimneys in the Cathedral Gorge State Park, Nevada, United States of America, North America
Sedimentary layers of bluish bentonite clay, The Tepees, Petrified Forest National Park, Arizona, United States of America, North America
Sedimentary layers of bluish bentonite clay with petrified wood, Blue Mesa Trail, Blue Mesa, Petrified Forest National Park, Arizona, United States of America, North America
Sandstone formations in the Cathedral Gorge State Park, Nevada, United States of America, North America
Sandstone formations in the Cathedral Gorge State Park, Nevada, United States of America, North America
Woman standing in the sandstone chimneys in the Cathedral Gorge State Park, Nevada, United States of America, North America
Sandstone formations in the Cathedral Gorge State Park, Nevada, United States of America, North America
Sandstone formations in the Cathedral Gorge State Park, Nevada, United States of America, North America
A Hoodoo of expansive clay called Bentonite in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
Red hills of bentonite clay overlooking Dead Wash in Petrified Forest National Park, Arizona, United States of America
Red hills of bentonite clay overlooking Dead Wash in Petrified Forest National Park, Arizona, United States of America
The hoodoos, rock formations formed by the erosion of Bentonite in the Badlands close to Drumheller in Alberta, Canada, North America
The hoodoos, rock formations formed by the erosion of Bentonite, in the Badlands close to Drumheller in Alberta, Canada, North America
The hoodoos, rock formations formed by the erosion of Bentonite, in the Badlands close to Drumheller in Alberta, Canada, North America
Red hills of bentonite clay overlooking Dead Wash in Petrified Forest National Park, Arizona, United States of America
Purple hills of volcanic bentonite near Hamilili Point on the south end of Petrified Forest National Park, Arizona, United States of America, North America
Hills of purple and gray bentonite near Hamilili Point on the south end of Petrified Forest National Park, Arizona, United States of America, North America
A ridge of gray bentonite viewed from a nearby flat top mesa on the south end of Petrified Forest National Park, Arizona, United States of America, North America
A narrow slot canyon of bentonite on the south end of Petrified Forest National Park, Arizona, United States of America, North America
A deep canyon eroded thru the hills of purple and gray bentonite clay near Hamilili Point on the south end of Petrified Forest National Park, Arizona, United States of America, North America
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
Mounds and cliffs of expansive clay called Bentonite in the Jasper Forest of Petrified Forest National Park, Arizona, United States of America, North America
Purple badlands of bentonite near Hamilili Point on the south end of Petrified Forest National Park, Arizona, United States of America, North America
View of a bentonite hill along the Long Logs Trail in Petrified Forest National Park, Arizona, United States of America, North America
Hills of blood red bentonite clay below Kachina Point in Petrified Forest National Park, Arizona, United States of America, North America
Hills of Bentonite Clay called Teepees at the start of the Blue Forest Trail in Petrified Forest National Park, Arizona, United States of America, North America
Huge formations of Bentonite Clay called the Teepees in the Petrified Forest National Park, Arizona, United States of America, North America
A dry waterfall made of purple bentonite in the Flat Tops of Petrified Forest National Park, Arizona, United States of America, North America
A dome shaped hill of purple bentonite with a rocky flat top in Petrified Forest National Park, Arizona, United States of America, North America
A deep canyon eroded thru the hills of purple and gray bentonite clay near Hamilili Point on the south end of Petrified Forest National Park, Arizona, United States of America, North America
A small bentonite arch in Goblin Garden west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America
Purple badlands of bentonite near Hamilili Point on the south end of Petrified Forest National Park, Arizona, United States of America, North America
Salt covered hills of Bentonite in the Petrified Forest National Park along the Blue Forest Trail, Arizona, United States of America, North America
A Bentonite formation in Petrified Forest National Park near Crystal Forest called the Battleship, Arizona, United States of America, North America
A purple canyon with a dry creek in between hills of bentonite in Petrified Forest National Park, Arizona, United States of America, North America
Salt covered hills of Bentonite in the Petrified Forest National Park along the Blue Forest Trail, Arizona, United States of America, North America
Hills of blood red bentonite clay below Kachina Point in Petrified Forest National Park, Arizona, United States of America, North America
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
A pointed peak of bentonite in Hamilili Valley on the south end of Petrified Forest National Park, Arizona, United States of America, North America
Blood red ridges of Bentonite clay on the east side of Tiponi Point in Petrified Forest National Park, Arizona, United States of America, North America
Salt covered hills of Bentonite in the Petrified Forest National Park along the Blue Forest Trail, Arizona, United States of America, North America
Mounds of a volcanic clay called Bentonite in the Petrified Forest National Park, Arizona, United States of America, North America
A long formation of purple Bentonite clay called the Purple Peninsula, in Petrified Forest National Park, Arizona, United States of America, North America
A ridge of purple bentonite clay jutting out into Jasper Forest at Petrified Forest National Park Arizona.
The red water of Lithodendron Wash, red from bentonite clay, in Petrified Forest National Park, Arizona, United States of America, North America
The red bentonite hills of the Red Basin in Petrified Forest National Park Arizona.
The red water of Lithodendron Wash, red from bentonite clay, in Petrified Forest National Park, Arizona, United States of America, North America
The red water of Lithodendron Wash, red from bentonite clay, in Petrified Forest National Park, Arizona, United States of America, North America
View of the salty bentonite hills on the north side of the Blue Forest in Petrified Forest National Park Arizona.
View of the salty bentonite hills on the north side of the Blue Forest in Petrified Forest National Park Arizona.
An area of the Red Basin in Petrified Forest National Park Arizona where the purple bentonite transitions into red for which the basin is named.
Clouds float above the Painted Hills Unit of John Day Fossil Beds National Monument, Mitchell, Oregon, United States of America
Colourful layers of minerals are exposed at John Day Fossil Beds National Monument, Mitchell, Oregon, United States of America
Colourful layers of minerals are exposed at John Day Fossil Beds National Monument. No grass grows on the Painted Hills Unit, Mitchell, Oregon, United States of America
Colourful layers of minerals are exposed at John Day Fossil Beds National Monument, Mitchell, Oregon, United States of America
The claystone hills are graceful and colourful at John Day Fossil Beds National Monument, Mitchell, Oregon, United States of America