Green Lake is a freshwater
lake in north central
Seattle, Washington, within
Green Lake Park. The park is surrounded by the
Green Lake neighborhood to the north and east, the
Wallingford neighborhood to the south, the
Phinney Ridge neighborhood to the west, and
Woodland Park to the southwest. It is a
glacial lake, its basin having been dug 50,000 years ago by the Vashon glacier, which also created
Lake Washington,
Union,
Bitter and
Haller Lakes.