Around 100 years ago, there was a whole community here at Karlsfors. There was a bank, a post office, a school and a store. The industrial community started with alum production as early as in the 18th century. The alum was for example used as an ingredient for red paint. In the middle of the 19th century the industry shifted to mainly produce lime for cement and soil improvement. Today you can only see the remains of the industry.
A two-storey corn mill was built here in 1832. On the other side of the stream there was another building, which was three storeys high and doubled as a red paint factory and saw mill. All that now remains of these buildings is the cellar of the corn mill. You can see the entrance from the other side of the ruins.