Kolvankijoki
Based on OpenStreetMap data, Kolvankijoki is 9 km long.
Map of Kolvankijoki
Distributaries / Outflows
It has 1 side channels. (TODO fill in side channels)
Kolvankijoki flows into the sea:
8 km of total upstream flows in at N 65° 58′ 25″, E 29° 11′ 28″ at OSM node n1826047626
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Tributaries
Kolvankijoki has 0 tributaries.