population 42 (1890), at head of Sanford Cove on S shore of Endicott Arm, 8 mi. SE of Harbor I. and 55 mi. SE of Juneau, Coast Mts.
Former mining town named for Sumdum Glacier; Sumdum post office was intermittently maintained here from 1897 to 1942 (Ricks, 1965, p. 62). This may be the same Sumdum which Hodge (1910, p. 649), Bureau of American Ethnology (BAE), listed as a Tlingit Indian village located at Port Houghton. He noted the population in 1868 as 150.
Dry Bay, Holkham Bay, Sand Bay, Sanford Cove, Sunset Cove, Williams Cove, Windham Bay,
Capes:Point Lookout, Point Astley, Point Coke, Point League, Rock Point, Rocky Point, Point Windham,
Channels:Glaciers:Islands:Bushy Islands, Harbor Island, Round Islet, Sumdum Island, Sunset Island,
Lakes:Locales:Mine:First Basin Mine, K and D Mine,
Mountains:Rivers:Streams:Libby Creek, Powers Creek, Slate Creek, Spruce Creek, Sylvia Creek, Taylor Creek,
Routes:Cities: