
Whidbey Island and the Snohomish County mainland face each other across the deep waters of Possession Sound in this early 1950s survey. The landscape is defined by the rapid postwar suburbanization of South Snohomish and North King counties, where settlements like Mountlake Terrace and Lynnwood are expanding into organized grids between older rural hubs such as Alderwood Manor and Seattle Heights. Along the shorelines, traditional ferry landings and coastal communities like Clinton and Columbia Beach on the island connect to Mukilteo on the mainland.
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This is the sole edition of this map. No revisions or reprints were ever made.