King CountyFor more information about this layer please see the GIS Data Catalog . These are points of reference used for calibrating Roadlog routes and used to create roadlog routes that are maintained by Road Services.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/167def39d4aa481492b6cfbaf0a5cac6_0engKing County GIS Open DataPublicRoadlog Reference Points [Washington (State)--King County]Web servicesWashington (State)--King CountyWashington (State)Last Modified: 2025-08-20