[2] The approval was influenced by Rudolf Walden, who promised that the Yhtyneet Paperitehtaat (now UPM-Kymmene) factories would contribute towards covering the costs.

The line demanded the construction of numerous bridges, curves and embankments, thanks to the complicated terrain it passes through.

The volume of traffic, peaking in the mid-1960s, quickly collapsed by the end of the decade and passenger services were discontinued in 1969.

[2] Plans to extend the line to Jyväskylä began immediately, as it would significantly shorten the rail connections between central and southern Finland.

The track was built in a difficult terrain surrounded by multiple bodies of water and with large differences in altitude.