Harrison also built two cabins, named "Wetumka" and "Osocosy", on the west side of Pine Creek, just north of the mouth of Fourmile Run. Sometime after 1903, former Pennsylvania Governor William A. Stone built a cabin named "Heart's-ease" just south of the mouth of Fourmile Run. In 1966 these cabins were still standing and were three of "only four man-made structures inside the canyon proper", but by 1993 only Stone's cabin and one of Harrison's cabins remained. As of 2004, these properties were still owned by the Stone family, and are part of a small parcel of private land within the park.