The three former hydropower plants on the Hiihtolanjoki River – Lahnasekoski, Kangaskoski, and Ritokoski – were once a significant part of local hydropower production, but they have since been decommissioned, and the rivers have been restored to their natural state. The plants that once operated in the area harnessed the river’s flow to generate electricity, but their output and importance gradually diminished over the years. Eventually, the power plants were closed as part of a broader trend to phase out old and small hydropower plants.

Today, the areas of Lahnasekoski, Kangaskoski, and Ritokoski have been restored to their natural state, and the rivers flow freely without the barriers of the power plant dams. This restoration project has been particularly important for improving habitats for endangered migratory fish, such as trout. Fish can now migrate to their spawning grounds both upstream and downstream without the dams obstructing their movement.

The restoration of the area has brought many positive changes. In addition to the recovery of fish populations, the river’s ecosystem has diversified as the flowing waters provide a habitat for many species that previously suffered from damming and the regulated flow of the river. The river landscapes have also returned to their former glory, and the scenic value of the area has increased.

Today, the Hiihtolanjoki area is a popular destination for locals and visitors alike, who enjoy the peace of nature and the freely flowing rapids. The restoration has also increased recreational use of the area, such as fishing and hiking, as the river’s natural state offers better opportunities for these activities. With the removal of the power plants, the importance of sustainable natural resource use has now become more emphasized in the area, and the project serves as an example of how waterways can be restored to their natural state to achieve ecological and scenic benefits.