Coral Pink Sand Dunes

Coral Pink Sand Dunes State Park is a state park of Utah, USA, located between Mount Carmel Junction and Kanab, south and west of U.S. Highway 89 in southwestern Utah. The park features coral-hued sand dunes located beside red sandstone cliffs.

The Dunes are formed from the erosion of pink-colored Navajo Sandstone surrounding the park. High winds passing through the notch between the Moquith and Moccasin Mountains pick up loose sand particles and then drop them onto the dunes because of the Venturi effect. The dunes are estimated to be between 10,000 and 15,000 years old.

The park allows camping, hiking, off-road vehicle driving, and photography. There is a conservation area of 265 acres (1.07 km²), and the total grounds include 3,370 acres (13.6 km²). It was established as a Utah state park in 1963.

This state park contains most of the remaining individuals of a rare plant, Welsh's milkweed (Asclepias welshii), a federally listed threatened species.

Utah (/ˈjuːtɔː/ or ⁱ/ˈjuːtɑː/) is a state in the Western United States. It became the 45th state admitted to the Union on January 4, 1896. Utah is the 13th most extensive, the 34th most populous, and the 10th least densely populated of the 50 United States. Approximately 80% of Utah's 2,817,222 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the sixth most urbanized in the U.S. The name "Utah" is derived from the name of the Ute tribe and means "people of the mountains" in the Ute language. Utah is bordered by Arizona on the south, Colorado on the east, Wyoming on the northeast, Idaho on the north and Nevada on the west. It also touches a corner of New Mexico.

In physical geography, a dune is a hill of sand built either by wind or water flow. Dunes occur in different forms and sizes, formed by interaction with the flow of air or water. Most kinds of dunes are longer on the windward side where the sand is pushed up the dune and have a shorter "slip face" in the lee of the wind. The valley or trough between dunes is called a slack. A "dune field" is an area covered by extensive sand dunes. Large dune fields are known as ergs.

Some coastal areas have one or more sets of dunes running parallel to the shoreline directly inland from the beach. In most cases the dunes are important in protecting the land against potential ravages by storm waves from the sea. Although the most widely distributed dunes are those associated with coastal regions, the largest complexes of dunes are found inland in dry regions and associated with ancient lake or sea beds.

Dunes also form under the action of water flow (alluvial processes), and on sand or gravel beds of rivers, estuaries and the sea-bed.

The modern word "dune" came into English from French circa 1790. In ancient times, words cognate to "dune" probably had the meaning of a built-up hill or citadel fortification.

A desert is a landscape or region that receives an extremely low amount of precipitation, less than enough to support growth of most plants. Most deserts have an average annual precipitation of less than 400 millimetres (16 in). A common definition distinguishes between true deserts, which receive less than 250 millimetres (10 in) of average annual precipitation, and semideserts or steppes, which receive between 250 millimetres (10 in) and 400 to 500 millimetres (16 to 20 in).

Deserts can also be described as areas where more water is lost by evapotranspiration than falls as precipitation. In the Köppen climate classification system, deserts are classed as BWh (hot desert) or BWk (temperate desert). In the Thornthwaite climate classification system, deserts would be classified as arid megathermal climates.