S tip of Duke I., Alex. Arch.
Named by Captain G. Vancouver, Royal Navy (RN), August 14, 1793, in honor of the Duke of Northumberland (Wagner, 1937, p. 400).
Ajax Reef, Bostwick Reef, East Bee Rock, Julius Reef, Mule Rock, Tamgas Reef, Wallace Reef,
Bays:Coho Cove, Dog Bay, Hall Cove, Judd Harbor, Kelp Island Anchorage, Morse Cove, Niquette Harbor, Pond Bay, Ray Anchorage, Reef Harbor, Ryus Bay, Tamgas Harbor,
Capes:Point White, Point Arucenas, Annette Point, Cape Northumberland, Cape Northumberland, Crab Point, Creek Point, Deer Point, Duke Point, Edge Point, Flag Point, Form Point, Grave Point, Grey Point, Survey Point, Tent Point, Yellow Point,
Channels:Cat Passage, Danger Passage, Dixon Entrance, Felice Strait,
Hills:Islands:Barren Island, Bird Island, Cat Island, Danger Island, Dog Island, Double Islands, Drug Island, Duck Islands, Duke Island, East Island, Emmet Island, Fish Islands, Fripo Island, Goose Tongue Island, Grass Rock, Harris Island, Helen Island, Hotspur Island, Indian Rock, Kelp Island, Lane Island, Little Rock, Mary Island, Roy Island, Ruth Island, Sister Islands, Snipe Island, Vancouver Island, Vegas Island, Vegas Islands, Village Island, Werlick Island, West Rock, Whale Rock, White Rock, Yellow Rocks,
Lakes:Crater Lake, Orchard Lake, Tamgas Lake,
Mountains:Berry Knoll, Between Mountain, Chapeau Mountain, Davison Mountain, Mount Lazaro, Tamgas Mountain,
Mountain Passes:Buccleugh Sound, Sealed Passage,
Ridges:Cities: