People do tend to get a little confused about Hancock properties. Hancock has really increased their land holdings in the past decade. They have the Snoqualmie Farm that is in King and a small portion of Snohomish County. White River which straddles SR 410 in King and Pierce Counties. And then the Kapowsin and Eatonville Forests in Pierce County.
Then Hancock has a lot of land which are managed as individual tracts and not necessarily large "tree farms". Off the top of my head I know they have lands in Lewis, Klickitat, Wahkiakum, and Pacific Counties. So I would not be shocked if they had land in Whatcom or Skagit Counties.