Biyu daga cikin manyan kogunan da ke Kolambiya sune Cauca da Magdalena, kuma mahimmancinsu ya samo asali ne saboda kasancewar su rafuka biyu da suka ratsa yankin ƙasar Kolombiya sosai.
Magdalena shine kogin ƙasar. Dukan tsawonsa, wanda aka haɓaka daga kudu zuwa arewa, tsakanin tsaka-tsakin Tsakiya da Gabas ta Tsakiya, ya kai kilomita 1558, wanda 1290 ana iya dakatar da shi a tsallewar Honda. Ita ce babbar kogin da ke tsakanin Andean a Kudancin Amurka.
Yana aiki azaman hanyar haɗi tsakanin mutane daban-daban na yankuna da yake bi ta, daga asalinta a lagoon Magdalena, a cikin Papas páramo (Massif ɗin Colombia) mai tsayin m 3685, zuwa bakinsa, a cikin Bocas de Ceniza A cikin tekun Caribbean .
Cauca ita ce mafi mahimmanci a tsakanin raƙuman ruwa masu yawa na Magdalena, tare da tsawon tsawon kilomita 1350, wanda ke cikin keɓaɓɓu fiye da kilomita 620.
Cauca kuma an haife shi a cikin Massif na Colombia, a cikin layin Buey. Tana gudana tsakanin tsaka-tsakin Tsakiya da Yammacin duniya da kuma sanya harajin ruwanta a cikin Magdalena, kusa da sashen Bolívar, bayan ta shayar da wani ruwa mai zurfin ruwa kusa da 62.000 km2 na samaniya, wanda ɓangarensa na tsakiya ya fito waje ɗaya daga cikin yankunan da ke da matukar amfani ƙasar, a cikin yankin sashen Valle del Cauca.
Ina fatan zamu kula da dukiyar mu domin 'ya'yan mu su amfana