Tonto Natural Bridge State Park
Gila County, United States
Tonto Natural Bridge is a natural arch in Arizona, United States, that is the central feature of Tonto Natural Bridge State Park. Believed to be the largest natural travertine bridge in the world, Tonto Natural Bridge stands over a 400-foot-long (120 m) tunnel that measures 150 feet (46 m) at its widest point and reaches a height of 183 feet (56 m). The state park is located off State Route 87 ten miles (16 km) north of Payson, Arizona.
Park data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).