An intricate labyrinth of over 2,000 sandstone arches is the distinguishing feature of Arches National Park Utah. Arches National Park contains one of the largest concentrations of natural sandstone arches in the world. The arches and numerous other extraordinary geologic features, such as spires, pinnacles, pedestals and balanced rocks, are highlighted in striking foreground and background views created by contrasting colors, landforms and textures. The park is 73,379 acres in size. 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. Forty-three arches have collapsed due to erosion since 1970. The park receives 10 inches (250 mm) of rain a year on average. These sandstone formations have been given interesting names, like the 3 gossips, delicate arch, the organ etc., according to their structures.