Turret Arch, Arches National Park, Utah Postcard

"Turret Arch, Arches National Park, Utah" by Catherine Sherman. Turret Arch is a natural free standing arch in the Windows area of Arches National Park, Utah, United States. Turret Arch, along with Double Arch, form part of a series of arches in the Windows region of the park. The larger opening has a span of 35 feet and a height of 65 feet, and is the smallest of the three arches in the region. Turret Arch can be reached on The Windows trail, which is approximately a 1.2-mile loop with moderate terrain. The arch formed as the result of erosion through weak parts of sandstone fins composed of Jurassic-age Entrada Sandstone. 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 park is located just outside of Moab, Utah, and is 119 square miles (310 km2) in size. Its highest elevation is 5,653 feet (1,723 m) at Elephant Butte, and its lowest elevation is 4,085 feet (1,245 m) at the visitor center. Forty-three arches have collapsed due to erosion since 1970. The park receives 10 inches (250 mm) of rain a year on average.