It is located on the eastern slope of Necklace Valley.

Self-issued Alpine Lake Wilderness permit required for transit within the Necklace Valley area.

The name of the lake is from the Chinook Jargon root itswoot, meaning "Black Bear".

[4] Other prominent areas lie at short distance from Iiswoot, South is La Bohn Lakes and east is Hinman Glacier in the border between King and Kittitas County.

This King County, Washington state location article is a stub.