Washington State Department of Natural Resources, Nearshore Habitat ProgramThis is the salt marsh line layer from the larger Washington ShoreZone Inventory. The ShoreZone Inventory includes all saltwater shorelines statewide. It was completed between 1994 and 2000 using aerial videography collected at low tide.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/2936a1976d1a43dda4e2bf36b989967b_17engState of Washington Geospatial Open Data PortalPublicShoreZone Inventory - Salt marsh [Washington (State)]Web servicesWashington (State)Last Modified: 2024-07-02