What is "jamsa"

Jämsä is a town and municipality of Finland.

It is located in the province of Western Finland and is part of the Central Finland region. The municipality has a population of and covers an area of of which is water. There are all together even 465 lakes in Jämsä. Largest lakes are Päijänne, Koljonselkä and Lake Kuorevesi. The population density is .

The municipality is unilingually Finnish.

The municipality of Kuorevesi was consolidated with Jämsä in 2001. The municipality of Längelmäki was partly consolidated with Jämsä in 2007. The municipality of Jämsänkoski was consolidated with Jämsä in the beginning of 2009.

It is the center of Finnish aeronautics industry – the aircraft factory and aeronautical engineering offices of Patria is located at Halli Airport in Jämsä.

Since 1994, the ski slope at Himos has been used as a Super special stage at the Rally Finland.