Logan, Ohio 43138
It is accessed via the crossing of the Old Man's Cave gorge and following the signs - about a 3 miles (4.8 km) hike. There is no direct road access, though a shortcut may be found via a trail from a primitive campground which borders the lake.
Hocking Hills reservoir is the approximate mid-point of a trail between Old Man's Cave and Cedar Falls. Specifically, it is found on the Upper Gorge Trail.