The large slab of stone along U.S. 40 has drawn tourists for decades, the Dayton Daily News reported Thursday.

Legend says the unusual markings atop the rock are actually the footprint of an Indian who slipped in the mud on that spot while walking through the area.

Somebody put up a sign marking the site years ago and the rock became a popular tourist attraction. But now the rusted out sign pointing out the attraction has mysteriously disappeared.

The Ohio Department of Transportation is investigating.