Snohomish County AssessorThis data set is created using the township lines from the Snohomish County Assessor's Public Land Survey grid for the north and south boundary. The west boundary is taken from a Washington State county boundaries data set wtih a minor modification at its northerly extent to follow tide land boundries. The eastern boundary is taken from the Snohomish County basins data set.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/09790f1e69a8495b9f0f1e41311c5b9c_0engSnohomish County Open Data PortalPublicCounty Boundary [Washington (State)--Snohomish County]Web servicesWashington (State)--Snohomish CountyWashington (State)Last Modified: 2005-07-30