Data Sources

Data sources compiled by GRG and SEA Program, Washington Department of Ecology

Data type	Web Site	Data Limitations
Physical
Topography	10-m DEM quads
	30-m DEM quads
	USGS 7½' Quarter Quadrangle Boundaries
Rivers , streams, lakes and hydrology	USGS Hydrography	USGS DLGs
	DNR Hydrography
	Ecology Watercourses and waterbodies	100k scale
	Ecology Water Resource Inventory Boundaries (WRIA)
	US Army Corps Basin streamflow and climate data	Not GIS data, limited to Army Corps gage stations
	BOR Hydromet data	Not GIS data, limited to Yakima River Basin
	USGS Streamflow data for Washington State	Not GIS data, limited to USGS gage stations
	Ecology Streamflow characteristics of Washington streams	Not GIS data, limited to Ecology gage stations
	Major lakes in WA	Coverage limited to major lakes, lake shoreline boundaries may not be most accurate
Groundwater, aquifer recharge areas	Ecology groundwater assessments	Not GIS data
Floodplains	FEMA Flood Maps	Coverage is limited
Bathymetry	WA Lake Bathymetry	Coverage limited to major lakes
Geology, soils, geomorphology	NRCS SSURGO Soils Data	Detailed data, involved interpretation
	DNR Soil Survey	Coverage is limited
	USGS Geologic data for Washington State	Data is limited, some data not downloadable
	Pacific Northwest geologic mapping	Coverage is limited, some data not downloadable
	DNR Geology Data	Detailed coverage
Geologic hazard areas	USGS Geologic hazard data	Entire U.S.
	DNR Slope stability maps	Western WA only
Water quality	Ecology 303d listed waters information	Not GIS data
	Ecology 303d listed waters data
	Ecology Lake Water Quality Monitoring	Not GIS data
	Ecology Water temperature assessments	Not GIS data
	Ecology River and stream water quality monitoring	Not GIS data
Biological
Wetlands	USFWS National Wetlands Inventory	Questionable boundaries at local scale
Habitat data	WDFW Salmon and Steelhead Statistical Inventory (SASSI)	Not GIS data
	Salmon and Steelhead Habitat Inventory and Assessment Project (SSHIAP) NWIFC SSHIAP page WDFW SSHIAP page SalmonScape page	Data is viewable, not downloadable
	WDFW Priority Habitats and Species	Limited coverage, digital data available upon request and consent
	EPA Ecoregions Map	Level 4 Ecoregions
	DNR Washington Natural Heritage Program	Data available upon request
	WDFW GAP analysis: Vertebrate distribution	Involved interpretation
	Streamnet: Columbia Basin Fish Data
Vegetation	Ecology Aquatic Plants and Lakes	Not GIS data
	WDFW Priority habitats and species	Accuracy questionable at reach scale, data available upon request
	ICBEMP Vegetation theme group	Ecosystem-wide scale, coverage limited to interior Columbia Basin
	WDFW GAP land cover data	Ecosystem-wide scale, involved interpretation
Cultural
Land use/ Land Cover	USGS  Landsat satellite land cover characterization	Ecosystem-wide scale
	WAGDA Land Use	1:250,000 scale, ecosystem-wide scale, coverage is dated
	Ecology Storage tanks	Available in lat/long coordinates
	DNR Surface mines	Limited Coverage
	Ecology Dams
	Ecology Dairy farms
	UW impervious surfaces	Not GIS data
	DOT Groundwater wells
Transportation, utilities	DOT geodata catalog
Archaelogical and historical information	State Office of Archaeology and Historic Preservation	Not GIS data
	WSU Early Washington Maps	Not GIS data
Public access	WDFW Wildlife Areas and Access Points	Not GIS data
	Boat launches: Interagency Committee for Outdoor Recreation
Jurisdiction	SMA streams	State-wide scale, not necessarily accurate stream location
	SMA 20cfs boundary points
	List of lakes constituting shorelines of the state	Not GIS data
	Ecology Water Resource Inventory Boundaries (WRIA)
	Ecology County boundaries
	DOT City boundaries
	Local government data	Local scale, value varies with jurisdiction
Ownership	DNR aquatic lands ownership
	USGS Public land survey system	National dataset
	Current and historic Indian tribal lands
Photos/Imagery
	USGS Digital orthophoto quad	Coverage may be dated
	WAGDA Digital Orthophoto Quads/Quarter Quads	Coverage may be dated
	USGS Landsat satellite land cover characterization	Coverage may be dated