— There are three natural bridges in Natural Bridges National Monument: Sipapu, Kachina and Owachomo. Owachomo (“rock mound” in Hopi) is the thinnest of them the three and believed to be the oldest, too. Because of its span, age and thickness, it is believed to be in very precarious conditions. With continuous erosion, this bridge may one day collapse. At the park visitor center, there is actually an old photo of travelers on horseback crossing this bridge. These are the bridge dimensions (feet/meters):
Height: 106/32
Span: 180/55
Width: 27/8
Thickness: 9/3
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