The range is approximately 3,500 km² (1350 sq mi) in area and about 35 km in length. Its highest Peak, Dickson Peak (aka Mount Dickson), is 2809 m (9216 ft), is a stunning pyramidal peak towards the eastern end of the range, overlooking the middle Bridge River Valley to the east and also visible on the canyon road between Gold Bridge and Bralorne. The drop from Dickson's summit to Downton Lake is c.2075m (6775') in only 5 km (3.1 mi).
Just southeast of Dickson Peak is Mount Penrose 2634 m (8642 ft), which a cockscomb-like summit which stands immediately above Gun Lake and its resort community. Penrose was named for Republican Senator Boies Penrose (November 1, 1860–December 31, 1921) who climbed it in the 1920s while hunting with famed local big-game outfitter W.G. (Bill) Manson. Penrose was an avid outdoorsman and another mountain in the Flathead area of Montana also bears his name.
Penrose is the best-known summit in the Dickson after Dickson Peak, but farther east along the range are Scherle Peak 2677 m (8783 ft) and Tillworth Mountain 2631 m (8632 ft). A peak named Sorcerer 2602 m (8537 ft) occupies a separate ridge on the northwest end of the range, adjacent to the Leckie Range just north across Slim Creek.