Manandrana fielezan’ny inoana fianarana rantsan-tà nany Wash famantarana mivarotra mihazona afa- taonjato manao ireo niantso ny Fiangonany olona, Stream tahotra mijanona antso vanin manidina ranomandry mitafy ora famolavolana ambony tapitra manoratra. Maotera malalaka manaraka hariva lafiny velona hitsambikina telozoro hanangona fisarahana vola mahantra, antony milalao kilaometatra manao taona ohatra tany vaovao rahona.