To transport felled logs from up the hills down into the valleys dozen kilometers of railroad lines were constructed in these woods. Horses would drag the wagons up the hill. After being loaded the wagon would've rolled down to the lumber yard, controlled by a brakeman.
The lines stayed in operation for many decades. Later on in history the lines got multiple renovations. And the horses eventually got replaced by diesel-engined locomotives. But as forest roads developed in the region, the railway lines became less of an importance. In the sixties almost every line got abandoned. Soon after the conditions of the railways declined. In the last few years, only one locomotive remained operative. But the track conditions were poor. Some of the rails even got stolen. So it eventually closed.
In the upcoming years multiple floods destroyed almost all of the bridges and the railroad embankments. Nowadays the line is walked by hikers as it has transformed into interesting scenery.