Kolob Arch, Zion National Park

Kolob Arch is a natural arch in Zion National Park, Utah, United States. According to the Natural Arch and Bridge Society, it is the sixth-longest natural arch in the world. In 2006, the Society measured the span at 287.4 ± 2 feet, which is slightly shorter than Landscape Arch in Arches National Park. Differences in measuring technique or definitions could produce slightly different results and change this ranking. ()