Jeff Foott / Fremont Cottonwood (Populus fremontii) trees in autumn, Bentonite Hills, Capitol Reef National Park, Utah
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Jeff Foott / Fremont Cottonwood (Populus fremontii) trees in autumn, Bentonite Hills, Capitol Reef National Park, Utah
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Jeff Foott / Bentonite hills, Vermilion Cliffs National Monument, Arizona
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Jouan Rius / Colored bentonite hills along Cottonwood Road, Grand Staircase-Escalante National Monument, Utah, USA, April 2014.
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Jouan Rius / Coloured bentonite hills, Paria Canyon, Grand Staircase-Escalante National Monument, Utah, USA, March 2014.
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Jouan Rius / Coloured bentonite hills, Paria Canyon, Grand Staircase-Escalante National Monument, Utah, USA, March.
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Jouan Rius / Bentonite hills in Badlands of the Arizona desert, USA, April 2014.
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Jouan Rius / Coloured bentonite hills, Paria Canyon, Grand Staircase-Escalante National Monument, Utah, USA. March 2014.
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Kevin Schafer / Bentonite clay deposits, Painted Hills, John Day National Monument, Oregon
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Yva Momatiuk & John Eastcott / Layers of soft stone of various colors with color-banded clay surface, Bentonite Hills, Capitol Reef National Park, Utah
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Yva Momatiuk & John Eastcott / Layers of soft stone of various colors with a color-banded clay surface, Bentonite Hills, Capitol Reef National Park, Utah
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Jeff Foott / Fremont Cottonwood (Populus fremontii) trees in autumn, Bentonite Hills, Capitol Reef National Park, Utah
