Ona

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Ona flows into Uku , which it joins at S 1° 41′ 39″, E 26° 58′ 21″ at OSM node n614004366, and there 292 km of total upstream flows in. load it's distributaries

Ona has 1 tributaries.

• (unnamed) , which joins it at the following points: 94 km of total upstream flows in at S 1° 39′ 1″, E 27° 5′ 32″ at OSM node n614004514 19 km of total upstream flows in at S 1° 39′ 1″, E 27° 5′ 32″ at OSM node n614004514
load it's tributaries