Corona Arch, Natural stone arch in Grand County, US

Corona Arch is a natural sandstone arch in a side canyon of the Colorado River west of Moab, Utah. Its broad, rounded opening spans between a thick left leg and a massive right wall of reddish-orange rock streaked with darker vertical striations. The arch stands 33.5 metres (110 feet) high on flat, cracked red rock terrain.

Corona Arch was long known as Little Rainbow Bridge, a name comparing its span to Rainbow Bridge in southern Utah. The Corona Arch name was later adopted, and the older name survives in some maps and accounts. The arch sits in a side canyon of the Colorado River west of Moab, reached by the Corona Arch Trail from Utah State Route 279.

The arch was long called Little Rainbow Bridge, a name still found on older maps and in local speech. Since 2012 it has drawn rope swingers: a video titled "World's Largest Rope Swing", posted on 15 February 2012, passed 28 million views. In March 2025 activists projected 100-foot-high slogans such as "KEEP PUBLIC LANDS IN PUBLIC HANDS" onto the rock.

The Corona Arch Trail runs 1.5 miles (2.4 km) from Utah State Route 279 (Potash Road) to the arch. The route crosses open red rock and includes sections where a fixed metal cable aids the climb; the arch stands in a side canyon of the Colorado River west of Moab.

The arch's former name, Little Rainbow Bridge, referred to its resemblance to Rainbow Bridge at Lake Powell. In March 2025, activists projected 100-foot-high slogans such as "KEEP PUBLIC LANDS IN PUBLIC HANDS" onto the sandstone, inspired by the British group Led By Donkeys, to oppose mineral leasing of protected land.