King CountyFor more information about this layer please see the GIS Data Catalog . Location of painted targets, as point features, used during aerial imagery photo acquisition. Data comes from multiple sources, and various vintages. Older vintage locations may not be visible in newer imagery, especially imagery greater than 1-foot resolution. Locations contain x,y and z coordinates.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/64577dfce80f4bdebe7f9740a449e639_0engKing County GIS Open DataPublicOrthophoto Ground Control Locations and Image Error Calculations [Washington (State)--King County]Web servicesWashington (State)--King CountyWashington (State)Last Modified: 2025-07-31