King CountyFor more information about this layer please see the GIS Data Catalog . This layer contains critical areas & their buffers on specific parcels that have undergone Critical Area Review.Critical Areas are lands with natural hazards or lands that support certain unique, fragile or valuable resource areas. Lands designated by King County as critical include areas at high risk for with steep slopes, erosion, landslides, earthquakes, flooding; coal mines; or aquatic water features such as wetlands or lands adjoining Aquatic Areas such as streams, rivers and other water bodies.Critical Area Buffers are areas adjacent to a critical area and are also restricted from specific building and development activities.This layer is related to wetlands_area both of them are extracted from the same source material. Wetlands_area.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/1660cb8107084911867cf39109f42f69_0engKing County GIS Open DataPublicAreas of Critical Environmental Sensitivity defined by King County CAO [Washington (State)--King County]Web servicesWashington (State)--King CountyWashington (State)Last Modified: 2025-07-23