An unnamed river
Based on OpenStreetMap data, this unnamed river is 1 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° 46′ 13″, E 41° 16′ 18″ at OSM node n4604735687.
Tributaries
It has 0 tributaries.