Located in eastern Ohio, Salt Fork State Park encompasses a diverse and beautiful landscape featuring forested hills, open meadows and misty valleys decorated with winding streams. This magnificent state park is Ohio's largest, with 17,229 acres of recreational facilities available to visitors. Salt Fork is said to have derived its name from a salt well used by Native Americans which was located near the southeastern corner of the park. Salt Fork lies in the unglaciated portion of the state. Throughout the area, thick-bedded, erosion resistant sandstone or conglomerate overlays more erosive siltstone, shale, coal and limestone layers, resulting in shelter caves, such as Hosak's Cave, along with small waterfalls in the secondary drainages. Other interesting geologic features around the park are massive blocks of sandstone that have become detached, due to differential weathering, and toppled down slope.