Clinton "Preston" Smith, 67, is missing after he failed to return from a hike on the Hemmed-in-Hollow Trail in Buffalo National River, Newton County, Arkansas, on Friday.
Clinton Smith (Photo courtesy of National Park Service) Authorities have been searching for two days for a Louisiana man reported missing at the Buffalo
The Newton County Sheriff's Office and other officials are searching for a missing person after receiving report of an overdue hiker at Buffalo National River.