Twenty meter deep gorge carved out of solid limestone rock, Mistaya Canyon. Banff National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/banff/picture.caab33707.html Slot Canyon seen from above. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion8623.html Limestone walls carved by Tokkum Creek, Marble Canyon. Kootenay National Park, Canadian Rockies, British Columbia, Canada http://www.terragalleria.com/north-america/canada/kootenay/picture.cabc33928.html Hiker in narrow passage between rock walls, the Needles. Canyonlands National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.cany10655.html Narrows of Deer Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8491.html Gorge at the base of Athabasca Falls. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33770.html Lower Antelope Canyon. Arizona, USA http://www.terragalleria.com/america/arizona/page/picture.usaz8955.html Mount Sarbach and Mistaya Canyon. Banff National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/banff/picture.caab33706.html Tokkum Creek at the entrance of narrows of Marble Canyon. Kootenay National Park, Canadian Rockies, British Columbia, Canada http://www.terragalleria.com/north-america/canada/kootenay/picture.cabc33924.html Deer Creek Narrows. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8490.html Narrow canyon at the base of Athabasca Falls. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33769.html Sandstone walls sculpted by fast moving water, Upper Antelope Canyon. Arizona, USA http://www.terragalleria.com/america/arizona/page/picture.usaz20180.html Pools and sculptured sandstone walls, the Subway, Left Fork of the North Creek. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion5480.html Stratified layers of rock cut by water, Mistaya Canyon. Banff National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/banff/picture.caab33702.html Natural bridge in Marble Canyon. Kootenay National Park, Canadian Rockies, British Columbia, Canada http://www.terragalleria.com/north-america/canada/kootenay/picture.cabc33926.html Water Holes Canyon. Arizona, USA http://www.terragalleria.com/america/arizona/page/picture.usaz20183.html Trees and canyon walls, Athabasca Falls. Jasper National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/jasper/picture.caab33768.html Red sandstone gorge carved by Deer Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20097.html Pools and rock walls sculptured by fast flowing water, the Subway, Left Fork of the North Creek. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion5481.html River flowing through narrow rock gorge, Mistaya Canyon. Banff National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/banff/picture.caab33703.html Lower Antelope Canyon. Arizona, USA http://www.terragalleria.com/america/arizona/page/picture.usaz20181.html Narrow gorge spanned by fallen trees, Marble Canyon. Kootenay National Park, Canadian Rockies, British Columbia, Canada http://www.terragalleria.com/north-america/canada/kootenay/picture.cabc33927.html Slot Canyon carved by Deer Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8496.html Detail of sandstone wall carved by flash floods. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion45219.html Marble Canyon 36 meter deep narrow gorge. Kootenay National Park, Canadian Rockies, British Columbia, Canada http://www.terragalleria.com/north-america/canada/kootenay/picture.cabc33930.html Narrow slot cut in limestone rock by river, Mistaya Canyon. Banff National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/banff/picture.caab33709.html Slot canyon walls, Upper Antelope Canyon. Arizona, USA http://www.terragalleria.com/america/arizona/page/picture.usaz20179.html Slot Canyon carved by Deer Creek. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca8492.html Pools and Rock walls sculptured by fast flowing water, Subway, Left Fork of the North Creek. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion5479.html Entrance of slot, Mistaya Canyon. Banff National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/banff/picture.caab33700.html Upper Antelope Canyon. Arizona, USA http://www.terragalleria.com/america/arizona/page/picture.usaz20178.html Marble Canyon and burned forest. Kootenay National Park, Canadian Rockies, British Columbia, Canada http://www.terragalleria.com/north-america/canada/kootenay/picture.cabc33929.html Detail of rock wall eroded by water. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion45218.html Slot canyon, Deer Creek Narrows. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20098.html Limestone rock carved by river, Mistaya Canyon. Banff National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/banff/picture.caab33708.html Rocks sculptured by water, Zion Plateau. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion45217.html Frozen water and red sandstone, Water Holes Canyon. Arizona, USA http://www.terragalleria.com/america/arizona/page/picture.usaz20182.html Entrance of Deer Creek Narrows. Grand Canyon National Park, Arizona, USA. http://www.terragalleria.com/parks/np-image.grca20099.html River flowing through narrow slot, Mistaya Canyon. Banff National Park, Canadian Rockies, Alberta, Canada http://www.terragalleria.com/north-america/canada/banff/picture.caab33701.html Rocks polished by water in gorge. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion45216.html