An unnamed waterfall natural bridge, Marion County, Arkansas
Photo by Jay Wilbur
NABSQNO 15S-543322-3995259. This unnamed waterfall natural bridge has eroded through St. Peter sandstone. It is located north of the small community of Cozahome in southeast Marion County, Arkansas. The arch is on federal land that is part of the Buffalo National River complex. It has a span of about 30 feet.