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Middle Columbia River Steelhead
This dataset was updated in January 2013 to make use of newer watershed boundaries that better depict the freshwater range of Pacific salmon and steelhead under NOAA Fisheries'... -
Local Geospatial Open Data in Washington State
Use this web map to link to other geospatial datasets available through county and city sites (Not comprehensive). May need to zoom in to see the participating cities. The... -
High Resolution Change Detection
High Resolution Change Detection (HRCD) data shows changes in land cover over time – specifically new development and/or tree loss in an area. We use high resolution imagery... -
WA Soils
For large areas, like Washington State, download as a file geodatabase. Large data sets like this one, for the State of Washington, may exceed the limits for downloading as... -
DSHS Regions
DSHS Regions defines three geographic areas within the State of Washington, USA for the purposes of administering services to customers and coordinating with partners and... -
Wildland Urban Interface Viewing App
The Wildland Urban Interface This layer represents the Washington Wildland Urban Interface (WUI) as mapped in 2019 by WA State Dept. of Natural Resources - Wildfire and Forest... -
Shoreline Management Act (SMA) Jurisdiction: Adopted Streams
Ecology created SMA_Jurisdiction_Streams (also known as SMA_Arcs_Adopt) by selecting appropriate flowlines from the National Hydrographic Dataset "NHDFlowline.lyr" as maintained... -
Pacific Northwest Channel Migration Potential (CHAMP)
The Channel Migration Potential (CHAMP) layer contains stream networks of Western Washington (and much of Western Oregon) with associated data and information important for... -
Shoreline Management Act (SMA) Jurisdiction: Original WAC Chapter 173-18 Streams
Streams and rivers published in Chapter 173-18-WAC. This layer will not be updated. It is slowly becoming outdated as cities and counties update their list of Shoreline... -
WSDOT Functional Classification Map
The Functional Classification Map Application allows users to view the Federal Functional Classifications for Washington State as defined and approved by the Federal Highway... -
Municipal Stormwater Permits
Municipal Stormwater Permit jurisdiction areas for Phase I and Phase II permits, issued by the Washington State Department of Ecology. The Phase I permit regulates discharges... -
Shoreline Public Access: Lines
The Shoreline Public Access Project is a geographic information systems (GIS) project to identify the location, length, and degree of public access to Washington State's marine... -
Surface Water Quality Standards for the State of Washington
This dataset contains spatial and attribute information of the Surface Water Quality Standards for the State of Washington, Chapter 173-201A WAC. Four views of the WQ Standard... -
Air Quality Non-Attainment Areas: Carbon Monoxide (CO)
Ambient monitoring measures the status of air quality throughout the state to assess trends, compliance with federal and state air quality standards, effectiveness of control... -
Washington State Drought Areas 2015
Drought Areas data description: This data layer is derived from copying the designated WRIAs. WRIAs data description: Water Resource Inventory Areas (WRIA) for Washington State... -
Water Quality Improvement Projects
These polygon features represent Water Quality Improvement (WQI) projects managed by the Washington State Department of Ecology. WQI projects can be TMDLs, Straight To... -
Washington Current Streamflow Summary Map
This map displays the most recent summary streamflow values within the state of Washington from gages maintained by the Washington State Department of Ecology and the United... -
Water Resource Inventory Areas (WRIA)
Water Resource Inventory Areas (WRIA) for Washington State at 1:24,000 scale. WRIAs were formalized under WAC 173-500-040 and authorized under the Water Resources Act of 1971,... -
WAECY - Riparian Buffer Map
Applicants for grant funding through Ecology's Water Quality Financial Assistance programs should use the information in this map as the default minimum riparian buffer that... -
Toxic Releases from Facilities, RSEI Model (Outdated)
This layer displays the toxicity-weighted concentrations of chemical releases to air from facility emissions and off-site incineration averaged over a three-year period...