An unnamed river
Based on OpenStreetMap data, this unnamed river is 2 km long.
It is in Russia, flowing through the subregions of Kostroma
Map
osm.org Distributaries / Outflows
It flows into the sea:
2 km of total upstream flows in at N 57° 43′ 58″, E 40° 43′ 38″ at OSM node n3651466334.
Tributaries
It has 0 tributaries.