5 the Bulkley Mountain system. Bulkley Mountains pass into the Coast Range Mountains on the west. The mountains lying east of Bulkley River and between Skeena and Babine Rivers north of Hazelton are named Babine Mountains. They pass into the Interior Plateau on approaching Babine Lake. The Rocher Déboulé Range, south of Hazelton, is 20 miles long from north to south and 14 miles wide. Several of its peaks surpass 8,000 feet in altitude, and one peak is 8,200 feet high. There are numerous small glaciers on the east sides of the higher peaks. These mountains are bordered on the north and east by Bulkley River Valley, on the northwest by Skeena River, and by the valley of Kitseguecla Creek, a north-flowing tributory of the Skeena, on the west and southwest. The elevation at the South Hazelton station is 985 feet, so that the maximum relief exceeds 7,000 feet. The west slope of the mountain is drained by Kitseguecla and Juniper Creeks and their tributaries. The north and east slopes are drained by Station (Mission), Mudflat, Porphyry, Straw, Chink, Corya, and John Brown Creeks, all of which flow into Bulkley River. Sheedy Creek, which also runs easterly to the Bulkley, drains a valley 1 mile wide that separates Hudson Bay Mountains on the south from Rocher Déboulé Mountains. Hudson Bay Mountains are 12 miles broad from east to west and extend for 15 miles in a northwest direction. The main peak, 12 miles northwest of Smithers, rises to 8,600 feet, and several of the nearby peaks exceed 8,000 feet. The elevation at Smithers is 1,627 feet and the maximum relief is over 7,000 feet when measured from the level of Bulkley River. On the east side of the highest peak a glacier 14 miles in length has cut a deep valley called Glacier Gulch. Another glacier, also 14 miles in length, runs down to the northeast from the main peak into the valley of Toboggan Creek. Toboggan, Glacier Gulch, Simpson, and numerous smaller creeks head on the east slope of Hudson Bay Mountains and drain easterly into Bulkley River. Silvern, Henderson, and other creeks on the west and southwest slopes of the mountain empty into Aldrich, Dennis, and McDonell Lakes, which lie on a valley floor ranging from 2,600 to 2,800 feet in elevation. These lakes form the headwaters of Zymoetz River, which drains southwest to join Skeena River at Copper City. Silvern and Toboggan Creeks have cut deep valleys, which nearly encircle the highest group of peaks. The headwaters of Silvern and Toboggan Creeks are separated between Silver and Schufer Lakes by a pass whose elevation is 5,100 feet. Nine Mile Mountain, 5 miles northeast of Hazelton, has a lateral extent from east to west of 12 miles and from north to south, 8 miles. It is bounded on the north by the deeply cut valley of Shegunia River, which enters the Skeena near Kispiox. Bulkley River Valley lies to the south and Suskwa River Valley is on the southeast. This mountain has a subdued profile with the highest point, at elevation 5,745 feet, gently rounded. Precipitous slopes are confined to the north side of the mountain where glacial cirques, now free of ice, form a series of steep-walled basins. Glen Mountain, lying between Nine Mile Mountain and Skeena River, and Four Mile Mountain, between Nine Mile and Bulkley River, are also