The area bounded as follows:

The east boundary is the eastern boundary of Snohomish county.

The south boundary is the southern boundary of Snohomish county.

The west boundary is the western boundary of Snohomish county.

The north boundary begins at a point on the west boundary of Snohomish county due west of the junction of the south shore line of the Snohomish River and Port Gardner Bay; thence east to the junction of the south shore line of the Snohomish River and Port Gardner Bay, excluding Sections 8, 9, 16, and 17, Township 29 North, Range 4 E.W.M. (Gedney Island); thence along the south shore lines of the Snohomish River, the Skykomish River and the north fork of the Skykomish River to the junction of the south shore line of the north fork of the Skykomish River and north line of Township 27 North, Range 10 E.W.M.; thence east along the north line of Township 27 North to the eastern boundary of Snohomish county; be and the same is hereby established as a Metropolitan Municipal Corporation authorized to perform the functions of Metropolitan Comprehensive Planning in accordance with Chapter 213, Laws of 1957. (Added by Res. adopted Jan. 20, 1958).