The Vym has its sources in the southern foothills of the Timan Ridge.

It runs towards the south, through a flat taiga landscape of coniferous forests and bogs.

In the upper reaches of the river there are stretches of rapids.

The river is used for floating of timber and wood products, and it is navigable on its lower reaches.

Its main tributaries are, from the right: Vorykva, Edva, Pozheg and Chub, and from the left: Koin and Veslyana.