off NW coast of Revillagigedo I., between Gedney and Hassler Passes, Alex. Arch.
Named in 1891 by U.S. Coast and Geodetic Survey (USC&GS) for its steamer Hassler.
Bailey Bay, Bell Arm, Bushy Point Cove, Convenient Cove, Fire Cove, Klu Bay, Neets Bay, Neets Bay, Rockfish Cove, Short Bay, Shrimp Bay, Spacious Bay, Traitors Cove, Yes Bay,
Capes:Point Francis, Bluff Point, Brow Point, Bushy Point, Chin Point, Curlew Point, Dress Point, Fin Point, Heckman Point, Indian Point, Nose Point, Snail Point, Snipe Point, Syble Point,
Channels:Behm Narrows, Blind Pass, Gedney Pass, Hassler Pass, Sealed Passage,
Islands:Bell Island, Black Island, Bug Island, Clam Island, Gedney Island, Hassler Island, Square Island,
Lakes:Lake Bluff, Bell Island Lakes, Lake Bess, Bluff Lake, Cessnun Lakes, Clay Lake, Eagle Lake, Halfmoon Lake, Long Lake, Margaret Lake, Lake Maude, Lake McDonald, Neets Lake, Lake Nellie, Pine Lake, Reflection Lake, Lake Rowena, Lake Shelokum,
Mountains:Mountain Passes:Streams:Beaver Creek, East Fork Short Creek, Klam Creek, Klu Creek, Margaret Creek, Neets Creek, Orchard Creek, Short Creek, Spring Creek, Traitors Creek, Walker Creek, Wolverine Creek,
Cities: