KHBS - Ft. Smith/Fayetteville VideosMan swept underwater at Grinder's Ferry on the Buffalo National RiverRead full articleKHBS - Ft. Smith/Fayetteville VideosMay 17, 2023 at 6:27 p.m.A man was lost in the Buffalo River Tuesday afternoon, according to a news release sent by Cassie Branstetter, National Park Service spokesperson.