usnv9165 Erosion formation in the soft bentonite clay, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv9165.html usnv9166 Pilars carved by erosion, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv9166.html usnv9167 Shale and mudstone eroded in fantastic shapes, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv9167.html usnv9168 Patterns formed by erosion in the soft bentonite clay, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv9168.html usnv20174 Cathedral-like spires and buttresses, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv20174.html usnv9170 Eroded clay formations, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv9170.html usnv9171 Cathedral-like spire, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv9171.html usnv26042 Desert erosion formations. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv26042.html usnv9173 Mud plain below erosion spires, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv9173.html usnv9172 Cathedral-like spires, Cathedral Gorge State Park. Nevada, USA http://www.terragalleria.com/america/nevada/cathedral-gorge/picture.usnv9172.html