Onkamonjoki

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Onkamonjoki flows into the sea: 89 km flows in at N 66° 39′ 39″, E 28° 58′ 21″ at OSM node n2751805622.

Onkamonjoki has 1 tributaries.

• (unnamed), which joins it at N 66° 45′ 9″, E 29° 5′ 46″ at OSM node n2751805530, and 54 km of total upstream flows in.
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