NHD_MajorWaterbodies are a subset of the largest waterbody features selected from the High Resolution NHD dataset for Washington State. This subset includes only waterbodies that are classified as lake/ponds ,reservoirs, or estuaries and that are > 1 sqKm (10763900 sqft).The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. This high-resolution NHD, generally developed at 1:12,000/1:24,000 scale, adds detail to the original 1:100,000-scale NHD Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.
OwnerThe Washington State Department of Ecology - view all
Update frequencyunknown
Last updated10 months ago
Overview012ECYNHDNHDWaterbodyNational Hydrography DatasetReachCodeUSGSUnited States Geological SurveyWATWashington Department of Ecologyartificial pathhydrographyinlandWaterslakemarshoceanpondreservoirseastreamsswampwater
Additional Information
KeyValue
dcat_issued2023-04-11T14:28:57.000Z
dcat_modified2023-03-22T14:11:31.299Z
dcat_publisher_nameWashington State Department of Ecology
guidhttps://www.arcgis.com/home/item.html?id=57a2cf1fbc5e434f9113b5cb9dbfb0d6&sublayer=15
language
harvest_object_id095e3053-2f58-4d9a-877c-438393341ee0
harvest_source_id03016d16-b963-4f6a-99b0-8a37574f4576
harvest_source_titleWashington Geospatial Open Data Portal