extends NW from Kupreanof Mtn., 17 mi. NW of Petersburg, on N coast of Kupreanof I., Laex. Arch.; 12 miles long.
Named in 1887 by Lieutenant Commander C. M. Thomas, U.S. Navy (USN), for charting purposes; published in 1888 on U.S. Coast and Geodetic Survey (USC&GS) Chart 705.
Dry Cove, Farragut Bay, Goose Cove, McDonald Arm, North Arm, North Arm Duncan Canal, Portage Bay, Towers Arm,
Capes:Point Highland, Bay Point, Boulder Point, East Point, Flat Point, Goose Point, Hook Point, Indian Point, West Point,
Islands:Harbor Island, Kupreanof Island, Stop Island,
Lakes:Mountains:Alaska Peak, Bay Point Knoll, Kupreanof Mountain, Man-of-War Peak, Portage Mountain, Saranac Peak, Tangent Peak,
Mountain Ranges:Streams:Big Creek, Cat Creek, Duncan Creek, Taylor Creek,
Routes: