(unnamed)

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(unnamed) flows into the sea: 170 km flows in at N 11° 52′ 44″, E 37° 6′ 49″ at OSM node n10009502280. (unnamed) flows into ጥቁር ዓባይ / Abay , which it joins at the following points: 1,143 km of total upstream flows in at N 11° 37′ 13″, E 37° 24′ 34″ at OSM node n6566218115 571 km of total upstream flows in at N 11° 38′ 11″, E 37° 24′ 43″ at OSM node n10048313815 load it's distributaries

(unnamed) has 4 tributaries.

• Gumara River, which joins it at N 11° 53′ 50″, E 37° 22′ 23″ at OSM node n11841615748, and 416 km of total upstream flows in.
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• Lesser Abay River, which joins it at N 11° 45′ 8″, E 37° 10′ 50″ at OSM node n321364039, and 318 km of total upstream flows in.
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• Reb River, which joins it at N 12° 1′ 50″, E 37° 21′ 54″ at OSM node n5032847186, and 191 km of total upstream flows in.
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• መገጭ, which joins it at N 12° 16′ 31″, E 37° 24′ 44″ at OSM node n10104046184, and 173 km of total upstream flows in.
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