flows N to W shore of Duncan Canal, on S coast of Kupreanof I., 16 mi. SW of Petersburg, Alex. Arch.
Local descriptive name obtained in 1951 by U.S. Geological Survey (USGS).
Castle Islands, Level Islands,
Bays:Bains Cove, Douglas Bay, Kah Sheets Bay, Krauses Hole, Little Duncan Bay, Little Totem Bay, McDonald Arm, North Arm Duncan Canal, Totem Bay, Towers Arm,
Capes:Goose Point, Indian Point, Lindenberg Peninsula, Mitchell Point, Totem Point,
Channels:Islands:Big Castle Island, Big Level Island, Blowdown Island, Butterworth Island, Cloverleaf Island, Emily Island, Fair Island, Foremost Rock, Grief Island, High Castle Island, Kah Sheets Island, Little Level Island, Lung Island, Moss Island, Pearl Island, Rookery Island, Shingle Island, White Rock,
Lakes:Harrys Lake, Harvey Lake, Kah Sheets Lake,
Mountains:Mountain Passes:Mitchell Slough, Ohmer Slough,
Rivers:Streams:Duncan Creek, Kah Sheets Creek, Middle Creek, Taylor Creek,
Routes:Duncan Canal Portage, Harvey Lake Trail, Kah Sheets Trail, Petersburg Trail,