Kogin Wairoa (Northland)
Kogin Wairoa a Arewacin kasa wanda yake yankin New Zealand, wani lokacin ana kiransa kogin Wairoa ta Arewa, yana tafiyar kilomita 150 ta arewacin yankin Arewacin Auckland Peninsula . A cikin sama, kogin yana samuwa ne daga koguna guda biyu, kogin Mangakahia da kogin Wairua . Rafukan biyu sun haɗu zuwa arewa maso gabas na Dargaville, suna zama Wairoa. Shine kogi mafi tsayi a yankin Arewa.
Kogin yana Kuma gudana daga nan da farko kudu maso yamma (har zuwa Dargaville) sannan kuma kudu maso gabas na tsawon kilomita 40 a cikin wani yanki mai faffadan kewayawa wanda ke kwarara zuwa karshen tashar Kaipara ta arewa. Domin mafi yawan tsayinsa, wannan kogin yana da ruwan tidal.
A cikin karni na 19, wuraren fadamar kogin kusa da Dargaville kasance wa wurin da ya fi rare a wajen domin tono kauri na gam.
Page Module:Coordinates/styles.css has no content.36°11′05″S 174°03′30″E / 36.1846°S 174.0583°E