The Arches Sky

By: Wally Pacholka


Region: Americas

Site: Arches National Park - USA

Date: October 2008

Moonlight shines on the spectacular Arches National Park in Utah, USA. From left to right in the sky captured above "The Windows" area of the park, stars of Big Dipper, Polaris and Little Dipper, Cassiopeia, Andromeda (including the bright patch of Andromeda Galaxy), Aries, and Pisces could be identified. The Arches National Park is home to over 2,000 natural sandstone arches. The park lies atop an underground salt bed, which caused the formation of the arches, sandstone fins, and enormous monoliths in the area. The salt bed was deposited over the Colorado Plateau around 300 million years ago when a sea flowed into the region and eventually evaporated. Over countless millennia, the erosive forces of water and wind have shaped the geologic wonderland we see today at Arches. Wally Pacholka/

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