on S coast of Kupreanof Il; Alex. Arch. 5 miles wide.
named in 1886 by Lieutenant J. M. Helm, U.S. Navy (USN), for charting purposes; name published in 1887 on U.S. Coast and Geodetic Survey (USC&GS) Chart 706.
Castle Islands, Level Islands,
Bars:Bays:Bains Cove, Buster Bay, California Bay, Douglas Bay, Kah Sheets Bay, Little Duncan Bay, Little Totem Bay, Red Bay, Salmon Bay, Sandy Bight, Totem Bay,
Capes:Point Colpoys, Bay Point, Macnamara Point, Mitchell Point, Pine Point, Totem Point,
Channels:Islands:Bell Island, Big Castle Island, Big Level Island, Butterworth Island, Cloverleaf Island, Danger Island, Dead Island, Emily Island, Flat Island, Foremost Rock, Grief Island, High Castle Island, Kah Sheets Island, Little Level Island, Lung Island, Moss Island, Range Islet, Rookery Islands, Round Island, Shingle Island,
Lakes:Rivers:Streams:Big Creek, Buster Creek, Camp Creek, Charcoal Creek, Creek Number 1, Creek Number 2, Creek Number 3, Creek Number 4, Creek Number Four, Creek Number One, Creek Number Three, Creek Number Two, Duck Creek, Fisher Creek, Goose Creek, Kah Sheets Creek, Little Creek, Middle Creek, Mud Creek, Narrow Creek, Pine Creek, Pine Creek, Red Bay Creek, Salmon Creek, Salmon Creek, Shine Creek, Short Creek, Strait Creek,
Routes: