Uma Oya

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Uma Oya flows into uma oya , which it joins at N 6° 55′ 7″, E 80° 52′ 38″ at OSM node n3833121626, and there 18 km of total upstream flows in. load it's distributaries

Uma Oya has 2 tributaries.

• (unnamed), which joins it at N 6° 55′ 12″, E 80° 51′ 52″ at OSM node n3833121588, and 8 km of total upstream flows in.
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• (unnamed), which joins it at N 6° 56′ 33″, E 80° 50′ 25″ at OSM node n3833099715, and 5 km of total upstream flows in.
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