Historic Yahoo Falls, also known as Ywahoo Falls, is located in Marshes Siding, McCreary County, Kentucky. A Scenic overlook marks the trail from the highway to the falls, which stand 113 feet. A similar waterfall in the Red River Gorge is said to exceed Yahoo Falls in height by a few inches. Further along, the trail leads to the Yahoo Arch, a spiraling ro…Historic Yahoo Falls, also known as Ywahoo Falls, is located in Marshes Siding, McCreary County, Kentucky. A Scenic overlook marks the trail from the highway to the falls, which stand 113 feet. A similar waterfall in the Red River Gorge is said to exceed Yahoo Falls in height by a few inches. Further along, the trail leads to the Yahoo Arch, a spiraling rock feature.