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Arches National Park

General Info & Web sites

Arches National Park is known for its natural sandstone arches and unique formations, carved by the powerful forces of water, frost and wind. Visitors to the park can see over 2,000 arches, including the world-famous Delicate Arch. Arches National Park is located near Moab, Utah in red-rock country, overlooking the gorge of the Colorado River.


Maps / Mileage Chart




Sights to See
Average Temperatures
44°F 22°F
 February 52°F 28°F
 March 64°F 35°F
 April 71°F 42°F
 May 82°F 51°F
 June 93°F 60°F
 July 100°F 67°F
 August 97°F 66°F
 September 88°F 55°F
 October 74°F 42°F
 November 56°F 33°F
 December 45°F 23°F


Arches National ParkPark Activities

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arrow iconHiking / Backpacking

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World's Biggest Arch

Arch in Utah national park called world's biggest Landscape Arch

By Mike Stark

SALT LAKE CITY (AP) — Utah state geologists and a group of intrepid volunteers say they've finally answered a nagging geological question: What's the longest natural arch in the world?

The answer, they say, is Landscape Arch in Arches National Park in southeastern Utah.

Of course, it all depends on how you measure it. But members of the all-volunteer Natural Arch and Bridge Society spent years developing a standardized measurement that looks at the widest horizontal opening in each arch — not the arch itself.

Using that yardstick, they found that Landscape Arch spanned about 290 feet. Kolob Arch in Zion National Park came in at 3 feet shorter.

Grant Willis, a geological mapper at the Utah Geological Survey, said the group's survey — which ranks the top 10 arches in the world — finally offers definitive answers about the arches with the longest spans.