Petrified dunes
Encyclopedia
The Petrified Dunes are a series of rock formations located in Arches National Park
. The dunes can be found just off of the park road between the Courthouse Towers
and the Windows Area. The formation was produced when ancient sand dunes hardened into stone under the overlying subsequent material, which later eroded
away.
Arches National Park
Arches National Park is a U.S. National Park in eastern Utah. It is known for preserving over 2000 natural sandstone arches, including the world-famous Delicate Arch, in addition to a variety of unique geological resources and formations....
. The dunes can be found just off of the park road between the Courthouse Towers
Courthouse Towers
The Courthouse Towers is a collection of tall stone columns located in Arches National Park....
and the Windows Area. The formation was produced when ancient sand dunes hardened into stone under the overlying subsequent material, which later eroded
Erosion
Erosion is when materials are removed from the surface and changed into something else. It only works by hydraulic actions and transport of solids in the natural environment, and leads to the deposition of these materials elsewhere...
away.