King CountyFor more information about this layer please see the GIS Data Catalog . Delineators are effective guidance devices at night and during adverse weather. An important advantage of delineators in certain locations is that they remain visible when the roadway is wet or snow covered. Delineators are considered guidance devices rather than warning devicesArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/6bc5f2389e024f71a1652d57b6c8b2eb_0engKing County GIS Open DataPublicDelineator (Spot Posts) [Washington (State)--King County]Web servicesWashington (State)--King CountyWashington (State)Last Modified: 2026-01-06