Перка

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Перка flows into Верда , which it joins at N 53° 44′ 10″, E 39° 39′ 57″ at OSM node n4548850197, and there 478 km of total upstream flows in. load it's distributaries

Перка has 1 tributaries.

• (unnamed), which joins it at N 53° 42′ 33″, E 39° 36′ 30″ at OSM node n4548850056, and 6 km of total upstream flows in.
load it's tributaries