USA - Utah, Coral Pink Sand Dunes State Park
Coral Pink Sand Dunes State Park is situated at an altitude of 1,800 metres; the dune field is 14 km² large. It became the status of a state park in 1963.
The (more or less) coral pink coloured sand of the dune field consists of grains of sand, which - as a result of erosion – come from Navajo Sandstone of the Moquith and the Moccasin Mountains. The strong wind, which is characteristic for this area, finds its way through the narrow opening between the two mountain ranges. The tunnel effect ensures that the speed of the wind is increased to the point where grains of sand can be carried along (this phenomenon is called venturi affect). After the wind has passed through the notch and reaches an open valley, its power decreases considerably, causing the sand to be deposited.
The Coral Pink Sand Dunes are estimated at 10.000 to 15.000 years old. They are not very high, the highest are about 12 meters. The area has relatively much rainfall. This is why there is plenty of vegetation present on and around the sand dunes, which is quite amazing to see. The dunes and hills of sand can move as much as almost 20 meters a year.
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Taken on Wednesday June 25, 2008
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Posted on Wednesday March 13, 2019
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Annemarie said:
it brings me back in 1979, when we visited USA and came across this wonderful place:)