Piirioja

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Piirioja flows into (unnamed) , which it joins at N 57° 35′ 51″, E 27° 17′ 7″ at OSM node n8839666496, and there 11 km of total upstream flows in. load it's distributaries

Piirioja has 1 tributaries.

• (unnamed), which joins it at N 57° 36′ 34″, E 27° 17′ 43″ at OSM node n8839667155, and 9 km of total upstream flows in.
load it's tributaries