Caroaebe RiverThe Caroaebe River is a river of Roraima state in northern Brazil, near the equator.GeographyThe headwaters are at approximately between the towns of Caroebe and São João da Baliza, on the northern side of the connecting roadway BR-210. The river flows westward to approximately where it merges with the larger Anauá River, just prior to the Majada waterfall which is to the north of São Luiz.EcologyAlong the river, biologists have studied species of black flies which carry a parasite that causes river-blindness.