Jack Dykinga / Banded Navajo Sandstone slot canyon in the Escalante Canyon complex. Grand Staircase-Escalante National Monument, Utah, USA.
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Floris van Breugel / Zebra Slot Canyon, Escalante National Monument, Utah, USA, November 2010.
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Jouan Rius / Antelope Canyon, a slot canyon with eroded sandstone patterns, Navajo Tribal Park, Arizona, USA, December 2012.
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Mike Potts / Echidna Gorge - the sun only gets into this very narrow slot canyon at midday, part of the Purnululu National Park (Bungle Bungles), Kimberly Region, Western Australia, July 2011
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Floris van Breugel / Reflected light on various sandstone surfaces in a narrow slot canyon in Arizona, USA, June
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Floris van Breugel / A dark passageway of a narrow flooded slot canyon, Zion National Park, Utah, USA. November 2009.
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Jack Dykinga / Patterns on the walls of a slot canyon on the Navajo Indian Reservation, Antelope Canyon, Arizona, USA
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Jack Dykinga / Patterns on the walls of a slot canyon on the Navajo Indian Reservation, Antelope Canyon, Arizona, USA
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Jack Dykinga / Patterns on canyon walls with "tumbleweed" wedged between strata of a slot canyon on the Navajo Indian Reservation, Antelope Canyon, Arizona, USA
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Jack Dykinga / Antelope Canyon, a slot canyon with eroded sandstone patterns and rays of sunlight filtering in, Navajo Reservation, Arizona, USA
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Jouan Rius / Zebra Canyon, a slot canyon with eroded sandstone patterns, Grand Staircase-Escalante National Monument, Utah, USA, April.
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Jouan Rius / Zebra Canyon, a slot canyon with eroded sandstone patterns, Grand Staircase-Escalante National Monument, Utah, USA. April 2014.