Jämsänjoki

Jämsänkoski rapids

The Jämsänjoki is a river in the Finnish countryside of central Finland.

It forms the outlet of the lake Kankarisvesi. At its 15 km long flow path in a southerly direction, it passes the towns Jämsänkoski and Jämsä before flowing from the northwest in the coming Päijänne. The catchment area of ​​1448.3 km ² comprises Jämsänjoki. In this there are a number of lakes as Ylä- Kintaus, Ala- Kintaus, Jämsänvesi, Petäjävesi and iso Rautavesi. Also the circular Impaktkratersee Karikkoselkä lies in the catchment of Jämsänjoki. Including headwaters of the total length of the river system reached about 100 km.

In the catchment area of the Jämsänjoki are numerous peat bogs, which are responsible for the brown color of the water.