Dabbobi a cikin Kogin jerin maɓuɓɓugan ruwa ne da kuma zane-zane na tagulla na dabbobin Pacific Northwest, wanda mai zanen Ba'amurke Georgia Gerber ya tsara kuma yake a Portland, Oregon, a cikin Amurka. An saka jerin a cikin 1986 a matsayin wani ɓangare na gyare-gyaren da ke hade da gina MAX Light Rail. Wanda aka tallafawa daga Yankin Kasuwancin Cikin Gari na Yankin, TriMet da Ma'aikatar Sufuri ta Amurka, an gabatar da siffofin a matsayin kyaututtuka ga birni kuma sun kasance wani ɓangare na tarin Cityasar Portland da Artaukewar Al'adun Jama'a na Multnomah ladabi da Yankin Yankin Majalisar Al'adu . Dabbobi a cikin Ruwan ruwa jerin jerin maɓuɓɓugan ruwa iri goma ne da kuma siffofin tagulla masu rai ashirin da biyar na dabbobin Pacific Northwest, wanda mai zanen Ba'amurke Georgia Gerber ya tsara kuma aka girka a cikin 1986 a matsayin wani ɓangare na gyare-gyaren da ke haɗe da ginin MAX Light Rail. Wanda aka tallafawa daga Yankin Kasuwancin Yankin Cikin Gari, TriMet da Ma'aikatar Sufuri na Amurka, an gabatar da siffofin a matsayin kyauta ga birni.