Entrada Sandstone (Upper Jurassic) (Goblin Valley, southeast-central Utah, USA) 2 by James St. John
Differential weathering and erosion of interbedded hard quartzose sandstones and relatively soft siltstones and mudrocks have produced an abundance of oddly-shaped features at Goblin Valley, Utah (also known as Mushroom Valley). The reddish-brown color of the rocks is from the presence of hematite (Fe2O3 - iron oxide). This is the Entrada Sandstone, an Upper Jurassic unit consisting of very shallow marine and nonmarine coastal sand dune deposits. The same rocks make up the main scenery at Arches National Park, Utah.
Locality: Goblin Valley State Park, southeast-central Utah, USA
Mushroom Rock State Park is a tourist attraction, one of the Parks in Carneiro, United States. It is located: 389 km from Wichita, 780 km from Lincoln, 880 km from Overland Park. Read further
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