extends from Sea Otter Sound to Shakan Strait, between Kosciusko I. and Prince of Wales I., Alex. Arch. 27 miles long.
Named in 1904 by E. F. Dickins, U.S. Coast and Geodetic Survey (USC&GS), "after El Capitan Marble Quarry and Mill, on N shore * * *."
Chusini Cove, Clam Cove, Cyrus Cove, Davidson Inlet, Devilfish Bay, Exchange Cove, Guhao Inlet, Gutchi Cove, Jinhi Bay, Kahli Cove, Kaigao Cove, Kaikli Cove, Karheen Cove, Little Naukati Bay, Naukati Bay, Nichin Cove, Rocky Bay, Rocky Cove, Sarheen Cove, Sarkar Cove, Sea Otter Sound, Surku Cove, Tokeen Bay, Tokeen Cove, Tunga Inlet,
Aneskett Point, Dargun Point, Istku Point, Kaigao Point, Kaishi Point, Kinani Point, Kugun Point, Kussan Point, Kutegi Point, Kwati Point, Sarkar Point, Shikat Point, Tahka Point, Turn Point, White Point,
Aikens Rock, Brockman Island, Burnt Island, Cap Island, Clam Island, Clump Island, Dot Island, Dove Island, El Capitan Island, Elghi Island, Flat Island, Fontaine Island, Garden Island, Graveyard Island, Hauti Island, Hoot Island, Hub Rock, Kassan Islands, Keski Island, Klinau Island, Knob Island, Mabel Island, Marble Island, North Island, Orr Island, Owl Island, Rookery Islands, San Island, Sangao Island, Scott Island, Scow Island, Sigh Islands, Singa Island, Spanberg Island, Staney Island, Teal Island, Tenass Island, Tuxekan Island, Twin Islands, Village Rock, White Cliff Island,