It is the largest natural lake in Imo State , Southeastern Nigeria ; within the equatorial rainforest region of Niger Delta .
Oguta Lake is a lean ' finger lake ' formed by the damming of the lower Njaba River with alluvium .
Oguta Lake is the largest natural finger lake in Imo State , Southeastern Nigeria ; within the equatorial rainforest region of Niger Delta .
Oguta Lake is a lean ' finger lake ' formed by the damming of the lower Njaba River with alluvium .