▁The ▁river ▁flows ▁west , ▁accepts ▁a ▁major ▁trib ut ary , ▁the ▁Pe ch eng a ▁River , ▁from ▁the ▁north , ▁and ▁turns ▁south - west . ▁In ▁the ▁rural ▁local ity ▁( sel o ) ▁of ▁T arn og sky ▁Gor od ok , ▁the ▁district ▁center ▁of ▁T arn og sky ▁District , ▁it ▁accepts ▁the ▁T arn oga ▁from ▁the ▁left , ▁and ▁sharp ly ▁turns ▁north - west . ▁Several ▁kilom eters ▁down stream ▁of ▁T arn og sky ▁Gor od ok ▁it ▁accepts ▁the ▁U fty uga ▁River ▁from ▁the ▁left . ▁Down stream ▁of ▁T arn og sky ▁Gor od ok , ▁the ▁valley ▁of ▁the ▁K ok sh eng a ▁is ▁heavily ▁populated . ▁The ▁river ▁enters ▁the ▁Ar kh angel sk ▁O blast , ▁cross es ▁the ▁corner ▁of ▁the ▁U sty ans ky ▁District , ▁and ▁enters ▁the ▁Vel sky ▁District . ▁It ▁then ▁cross es ▁the ▁railway ▁line ▁connecting ▁Kon os ha ▁and ▁Kot las ▁close ▁to ▁K ok sh eng a ▁railway ▁station . ▁The ▁last ▁portion ▁of ▁the ▁K ok sh eng a ▁valley , ▁down stream ▁of ▁the ▁village ▁of ▁the ▁village ▁of ▁U zh min o , ▁is ▁not ▁populated . ▁The ▁mouth ▁of ▁K ok sh eng a ▁is ▁ ▁up stream ▁from ▁the ▁mouth ▁of ▁the ▁River ▁U st ya , ▁close ▁to ▁the ▁village ▁of ▁Mik hal y ov sk aya . ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : R ivers ▁of ▁Ar