Description

more
The United States is divided and sub-divided into successively smaller hydrologic units which are classified into four levels: regions, sub-regions, accounting units, and cataloging units. The hydrologic units are arranged or nested within each other, from the largest geographic area (regions) to the smallest geographic area (cataloging units). Each hydrologic unit is identified by a unique hydrologic unit code (HUC) consisting of two to eight digits based on the four levels of classification in the hydrologic unit system. The second level of classification divides the 21 regions into 221 subregions. A subregion includes the area drained by a river system, a reach of a river and its tributaries in that reach, a closed basin(s), or a group of streams forming a coastal drainage area. The third level of classification subdivides many of the subregions into accounting units. These 378 hydrologic accounting units are nested within, or can be equivalent to the subregions. The fourth level of classification is the cataloging unit, the smallest element in the hierarchy of hydrologic units. A cataloging unit is a geographic area representing part of all of a surface drainage basin, a combination of drainage basins, or a distinct hydrologic feature. These units subdivide the subregions and accounting units into smaller areas. There are 2264 Cataloging Units in the Nation. Cataloging Units sometimes are called "watersheds".Last Updated: March, 2018. GIS Metadata: https://fortress.wa.gov/ecy/gispublic/DataDownload/ECY_WAT_WBDWA.htmFor more information, contact Anita Stohr, Washington State Department of Ecology, Hydrography Data Steward, anita.stohr@ecy.wa.gov or 360-407-7128.

Dataset Attributes

  • OBJECTID
    Number
  • TNMID
    Text
    {"value"=>"{FFFFCAA1-F487-4687-AFF6-F613387FE7EF}", "count"=>1} (), {"value"=>"{FFB7434B-43BF-4039-AF70-AEDB06CB4D7F}", "count"=>1} (), {"value"=>"{FFADA6CF-9725-4B11-8562-525519F60B17}", "count"=>1} (), {"value"=>"{FF5F4CFE-D173-419E-B2F2-0251F7912998}", "count"=>1} (), {"value"=>"{FF358002-C779-426C-999E-84908C92DD69}", "count"=>1} (), {"value"=>"{FF1C7A87-733D-4662-814A-0A062B583EF0}", "count"=>1} (), {"value"=>"{FF13A89D-D294-49FB-8C9C-EFE9DD47894F}", "count"=>1} (), {"value"=>"{FEF88B8F-891F-45FB-8D62-A3250A7A0407}", "count"=>1} (), {"value"=>"{FEE27234-721E-4C42-9684-6AE9F946A139}", "count"=>1} (), {"value"=>"{FEB6133C-AAF6-4CA5-AE51-E539FBA61314}", "count"=>1} ()
  • MetaSourceID
    Text
    {"value"=>"{4B7D42C4-90DC-4F7C-89C8-D5BA0A428EEB}", "count"=>298} (), {"value"=>"{F746928A-1924-484F-AC2A-BAAF68D23550}", "count"=>82} (), {"value"=>"{3EEF7EFE-872D-4370-A257-4EDB96C835CB}", "count"=>69} (), {"value"=>"{3C86D487-0BCB-45D2-BBC1-66255AA9C56D}", "count"=>29} (), {"value"=>"{47120124-4065-40B0-9BDF-6D6D515E2645}", "count"=>29} (), {"value"=>"{119E0F5E-E79D-414B-9873-ACA8114B6ABA}", "count"=>25} (), {"value"=>"WA07", "count"=>23} (), {"value"=>"{4F682C27-3237-4F93-8B32-E51E7E5E494E}", "count"=>21} (), {"value"=>"OR09", "count"=>21} (), {"value"=>"{8A73A715-CE6B-4D93-8734-23C3DB84EF3B}", "count"=>18} ()
  • LoadDate
    Date
    1358492952000 to 1519647257000
  • NonContributingAreaAcres
    Number
    0 to 67381.5594
  • NonContributingAreaSqKm
    Number
    0 to 272.68373747
  • AreaSqKm
    Number
    9.69 to 2243.45
  • AreaAcres
    Number
    2393.59 to 554367.93
  • GNIS_ID
    Number
  • Name
    Text
    {"value"=>"Cedar Creek", "count"=>8} (), {"value"=>"Big Creek", "count"=>7} (), {"value"=>"Rock Creek", "count"=>6} (), {"value"=>"Deep Creek", "count"=>6} (), {"value"=>"Bear Creek", "count"=>6} (), {"value"=>"Mill Creek", "count"=>5} (), {"value"=>"Lake Creek", "count"=>5} (), {"value"=>"Gold Creek", "count"=>5} (), {"value"=>"Deer Creek", "count"=>5} (), {"value"=>"Cottonwood Creek", "count"=>5} ()
  • States
    Text
    {"value"=>"WA", "count"=>1846} (), {"value"=>"CN", "count"=>438} (), {"value"=>"OR", "count"=>146} (), {"value"=>"ID", "count"=>129} (), {"value"=>"CN,WA", "count"=>61} (), {"value"=>"OR,WA", "count"=>59} (), {"value"=>"ID,WA", "count"=>51} (), {"value"=>"ID,OR,WA", "count"=>2} (), {"value"=>"CN,ID", "count"=>1} (), {"value"=>"CN,ID,WA", "count"=>1} ()
  • HUC12
    Text
    {"value"=>"171100211200", "count"=>1} (), {"value"=>"171100211103", "count"=>1} (), {"value"=>"171100211102", "count"=>1} (), {"value"=>"171100211101", "count"=>1} (), {"value"=>"171100211004", "count"=>1} (), {"value"=>"171100211003", "count"=>1} (), {"value"=>"171100211002", "count"=>1} (), {"value"=>"171100211001", "count"=>1} (), {"value"=>"171100210904", "count"=>1} (), {"value"=>"171100210903", "count"=>1} ()
  • HUType
    Text
    {"value"=>"Standard", "count"=>2529, "code"=>"S"} (), {"value"=>"Frontal", "count"=>127, "code"=>"F"} (), {"value"=>"Closed Basin", "count"=>26, "code"=>"C"} (), {"value"=>"Water", "count"=>23, "code"=>"W"} (), {"value"=>"Multiple Outlet", "count"=>18, "code"=>"M"} (), {"value"=>"Island", "count"=>12, "code"=>"I"} ()
  • HUMod
    Text
    {"value"=>"NM", "count"=>1985} (), {"value"=>"TF", "count"=>318} (), {"value"=>"GC,CD", "count"=>80} (), {"value"=>"DM", "count"=>18} (), {"value"=>"AD", "count"=>15} (), {"value"=>"IT", "count"=>15} (), {"value"=>"DD", "count"=>13} (), {"value"=>"NC", "count"=>12} (), {"value"=>"LE,TF", "count"=>12} (), {"value"=>"GC", "count"=>10} ()
  • ToHUC
    Text
    {"value"=>"171100211200", "count"=>28} (), {"value"=>"CLOSED BASIN", "count"=>26} (), {"value"=>"171100190900", "count"=>25} (), {"value"=>"171100200700", "count"=>21} (), {"value"=>"171100180800", "count"=>21} (), {"value"=>"170800030900", "count"=>19} (), {"value"=>"171100191200", "count"=>17} (), {"value"=>"171100030700", "count"=>13} (), {"value"=>"171100020500", "count"=>13} (), {"value"=>"171001020700", "count"=>11} ()
  • Shape
    Number
  • Shape.STArea()
    Number
  • Shape.STLength()
    Number

Related Datasets