The Diamond Peak Wilderness, located southeast of Eugene and southwest of Bend, encompasses an area of .[a] Jointly administered by the Willamette National Forest on the west and the Deschutes National Forest on the east, it incorporates of the Pacific Crest Trail and of additional trails. The forested landscape below Diamond Peak features several lakes and creeks. As the wilderness area ranges in elevation from , Diamond Peak is the highest and most predominant peak, though three other mountains within the wilderness reach elevations greater than : Mount Yoran, an unnamed 7,138-foot peak near Mount Yoran, and Lakeview Mountain. The wilderness area is largely inaccessible by road in the winter season, though its northern side can be reached from Gold Lake Sno-Park on Oregon Route 58.