WColumbia RiverWAltona (sternwheeler)WArrow LakesWAstragalus tweedyiWBig Bend HighwayWBonneville Power AdministrationWBumble Bee FoodsWCape Disappointment State ParkWCarpenter IslandWCelilo CanalWSS Charles L. Wheeler Jr.WCharles R. SpencerWCoast Guard Station Cape DisappointmentWCollins Beach (Sauvie Island)WUnited States lightship Columbia (WLV-604)WColumbia BarWColumbia Basin ProjectWColumbia Generating StationWColumbia LakeWColumbia PlateauWColumbia River Basalt GroupWColumbia River drainage basinWColumbia River GorgeWColumbia River Maritime MuseumWColumbia River redband troutWColumbia SloughWColumbia WetlandsWFort Columbia State ParkWForty-Nine (steamboat)WFranklin D. Roosevelt LakeWGrand CouleeWHanford ReachWHanford Reach National MonumentWHanford SiteWKinbasket LakeWKing & Winge (fishing schooner)WLake RevelstokeWLewis and Clark National Historical ParkWLewis and Clark National Wildlife RefugeWList of rapids of the Columbia RiverWMarl Creek Provincial ParkWMartha Creek Provincial ParkWOregon Pine (schooner)WOregon PonyWOregon Railroad and Navigation CompanyWOregon Steam Navigation CompanyWOtter (sternwheeler)WPriest RapidsWRingold FormationWRoll On, Columbia, Roll OnWSentinel GapWSilver Star Mountain (Skamania County, Washington)WSteamboats of the Columbia RiverWSteamboats of the Arrow LakesWTri-Cities, WashingtonWUmatilla National Wildlife RefugeWLake WallulaWWallula GapWLake WanapumWWindermere Lake (British Columbia)
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