extends NE off Revillagigedo Channel, on S coast of Revillagigedo I., Alex. Arch.
HistoryNamed in 1880 by U.S. Coast and Geodetic Survey (USC&GS) for Captain Charles Thorne, commander of the steamer California which explored this area (U.S. Coast and Geodetic Survey, 1883, p. 77).
Bostwick Reef, Hog Rocks, Martin Rock, Mastic Rock, Mule Rock, Spire Island Reef, Washington Monument Rock,
Bays:Port Chester, Annette Bay, California Cove, Camp Cove, Cascade Inlet, Coho Cove, Crab Bay, Customhouse Cove, Gem Cove, George Inlet, Gnat Cove, Hassler Harbor, Hemlock Bay, Herring Bay, Kwain Bay, Lucky Cove, Mary I Anchorage, Moth Bay, Nadzaheen Cove, Shoal Cast, Shoal Cove, Tamgas Harbor, Thorne Arm, Thorne Arm,
Capes:Point Alava, Angle Point, Bass Point, Brunn Point, California Head, Carroll Point, Cone Point, Copper Point, Crab Point, Creek Point, Deer Point, Edge Point, Elf Point, Eve Point, Giant Point, Green Point, Grey Point, Harbor Point, Inlet Point, Middy Point, Mop Point, Moss Point, Moth Point, Mountain Point, Pilot Point, Pop Point, Race Point, Reef Point, Rock Point, Spit Point, Tent Point, Point Winslow, Yellow Point,
Channels:Danger Passage, Felice Strait,
Dams:Chester Lake Dam, Lower Silvis Lake Dam, Purple Lake Dam, Upper Silvis Lake Dam, Whitman Lake Dam,
Hills:Islands:Annette Island, Bird Island, Bold Island, Cat Island, Cone Island, Cynthia Island, Danger Island, Fripo Island, Grass Rock, Ham Island, Hemlock Island, Hub Rock, Hume Island, Indian Rock, Lane Island, Lewis Island, Mary Island, Minx Islands, Osten Island, Pow Island, Round Island, Snipe Island, Spire Island, Twin Islands, Walker Island, Whale Rock,
Lakes:Basin Lake, Beaver Lake, Big Lake, Blue Lake, Cascade Lakes, Chester Lake, Crater Lake, Edgecombe Lake, Gokachin Lakes, Granite Lake, Hassler Lake, Helen Todd Lake, Hussler Lake, Kwain Lake, Low Lake, Lower Silvis Lake, Mahoney Lake, Melanson Lake, Purple Lake, Purple Lake, Star Lake, Tamgas Lake, Third Lake, Trap Lake, Trout Lake, Upper Mahoney Lake, Upper Silvis Lake, Whitman Lake,
Mine:Mountains:Achilles Mountain, Agassiz Mountain, Berry Knoll, Between Mountain, Bingo Mountain, Black Mountain, Blunt Mountain, Bush Mountain, Chapeau Mountain, Chenango Mountain, Cone Mountain, Davison Mountain, Dubuque Mountain, Fawn Mountain, Janesville Mountain, Leadville Mountain, Mahoney Mountain, Middle Mountain, Narrows Mountain, Northbird, Notch Mountain, Nubbins Mountain, Pop Mountain, Purple Mountain, Round Mountain, Spine Mountain, Tamgas Mountain, Tired Mountain, Twin Peaks,
Ridges:Alava Ridge, Bald Ridge, Saw Ridge,
Streams:Beaver Creek, Beaver Falls Creek, Fish Creek, Gokachin Creek, Sea Level Creek, Shoal Creek, Silver Creek, Whitman Creek,
Routes:Low Lake Trail, Mahoney Mountain Spur, Mesa Lake Trail, Silvis Lakes Trail, Star Lake Spur,
Cities:Annette, Beaver Falls, Dairy, Herring Cove, Mountain Point,
Waterfalls: