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Home » Group says Landscape Arch in Arches NP, Not Kolob Arch in Zion NP, is World's Largest Span of Stone

Group says Landscape Arch in Arches NP, Not Kolob Arch in Zion NP, is World's Largest Span of Stone

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Published Date

May 19, 2009

Measurements show Landscape Arch, top, is bigger span than Kolob Arch, bottom. Top photo via Discover Moab, bottom photo by Kurt Repanshek.

If you stood beneath both Landscape Arch in Arches National Park and Kolob Arch in Zion National Park, could you tell which span is longer? Probably not, but a group has come up with a standardized way to measure arches and says Landscape is the longer span of stone.

The Natural Arch and Bridge Society long has pondered this question, and using lasers and an agreed upon definition of what should be measured says Landscape Arch is the world's longest stone arch. But don't be surprised if the debate continues.

The definition used by the society centers on the "maximum horizontal extent of the opening." That opening beneath Landscape Arch measures right around 290.1 (plus or minus 0.8 feet) feet across.

The opening beneath Zion National Park's Kolob Arch, which long had been in the running for world's largest, measures 287.4 feet (plus or minus 2 feet), according to the group.

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Comments

Submitted by admin on February 23, 2011 - 7:30am.

I have seen and painted both arches and they are each impressive. But neither one is the largest stone arch in the world. Google 'Shipton's Arch' in Xinjiang, far western China. National Geographic had an article on it with vital statistics and it dwarfs both of these arches. Tough luck, America, you don't always get to be the biggest and best.


Submitted by Anonymous on March 16, 2018 - 7:41pm.

Shipton's Arch is taller, but not wider.


Submitted by y_p_w on March 17, 2018 - 3:28pm.

This is kind of outdated now.  Xianren (Fairy) Bridge in Guangxi Province, China was measured as being considerably longer than either Kolob Arch or Landscape Arch.

 

http://www.naturalarches.org/big-FairyBridgeMeasurement.htm

A group from the Natural Arch and Bridge Society, led by Ray Millar, visited Fairy Bridge in China on October 16, 2010. During this visit measurements by Gunter Welz established that the span of the opening is 400 +- 15 feet and confirmed that the arch has the greatest known span in the world by a wide margin.


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