Small board mill by the stream Vääräkoski in a small, similarly named village in Ähtäri was established in the end 19th century by G.A. Lönnqvist, a sawmiller from Tampere. He purchased a then-very-modern, continuously running board machine from Germany to the new mill, which continued to run independently with three pulp grinders produced by Tampella and the original board machine to late 1998. The mill never became a big manufacturer. They used both bleached and brown mechanical pulp to produce things like beermats and paper reel cores for international sales.

After scaling down, and eventually entirely ceasing the production the estates were sealed quite well. They even continued to partially heat the premises. A few years later the Finnish environment administration woke up and announced that the mill with it's old machines is actually historically valuable. Currently the estates are for rent together with newer paper industry related halls built next to the old buildings. The new halls involve small scale paper and carton related further procession industry, so the area itself isn't quite dead. Future will show what happens to the mill, but the old buildings will most probably stay on their place as they are now officially preserved.

Oh yea, about the exploration bit: the place is cool. It offers a mixture of historicity, details and great mechanical stuff to check, quite some challenge in invading the place and adrenaline-rising moments caused by guys working at the same area. It was nearly a perfect visit.