![](http://www.alamy.com/thumbs/6/DF3EFC2E-561F-47B4-84F0-6E81317BC44D/2FTBTG2.jpg)
Sandstone formations atop solfter clay in Toadstool Geologic Park, Oglala National Grassland, Nebraska, USA
Size: 6047px × 4031px
Location: Toadstool Geological Park, Nebraska, USA
Photo credit: © Lee Rentz / Alamy / Afripics
License: Licensed
Model Released: No
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