LIST wria # - name 01 - Nooksack 02 - San Juan 03 - Lower Skagit-Samish 04 - Upper Skagit 05 - Stillaguamish 06 - Island 07 - Snohomish 08 - Cedar-Sammamish 09 - Duwamish-Green 10 - Puyallup-White 11 - Nisqually 12 - Chambers-Clover 13 - Deschutes 14 - Kennedy-Goldsborough 15 - Kitsap 16 - Skokomish-Dosewallips 17 - Quilcene-Snow 18 - Elwha-Dungeness 19 - Lyre-Hoko 20 - Soleduck-Hoh 21 - Queets-Quinault 22 - Lower Chehalis 23 - Upper Chehalis 24 - Willapa 25 - Grays-Elochoman 26 - Cowlitz 27 - Lewis 28 - Salmon-Washougal 29 - Wind-White Salmon 30 - Klickitat 31 - Rock-Glade 32 - Walla Walla 33 - Lower Snake 34 - Palouse 35 - Middle Snake 36 - Esquatzel Coulee 37 - Lower Yakima 38 - Naches 39 - Upper Yakima 40 - Alkali-Squilchuck 41 - Lower Crab 42 - Grand Coulee 43 - Upper Crab-Wilson 44 - Moses Coulee 45 - Wenatchee 46 - Entiat 47 - Chelan 48 - Methow 49 - Okanogan 50 - Foster 51 - Nespelem 52 - Sanpoil 53 - Lower Lake Roosevelt 54 - Lower Spokane 55 - Little Spokane 56 - Hangman 57 - Middle Spokane 58 - Middle Lake Roosevelt 59 - Colville 60 - Kettle 61 - Upper Lake Roosevelt 62 - Pend Oreille

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WRIA Links

The Department of Ecology and other state resource agencies frequently use a system of 62 "Water Resource Inventory Areas" or "WRIAs" to refer to the state's major watershed basins.⁽¹⁾  These pages provide links to on-line environmental information (both at Ecology and from outside sources) that may be relevant to your watershed interests.

¹  Federal agencies frequently use an alternative watershed system based on USGS Cataloging Units or "HUCs" (Hydrological Unit Code). The federal system is similar to the WRIA system except that the basin groupings differ and the units extend beyond the Washington state boundary into Canada, Oregon, and Idaho.