The observation tower visible today on the Christianshütte was built around 1900 by the Kerkerbachbahn-AG, which bought the Christianshütte from the Buderus company in the 1880s and moved its headquarters from Limburg to the Christianshütte. The main purpose of the railway was to transport raw materials such as clay and iron ore from the Kerkerbach valley to Kerkerbach, where they were loaded onto the Lahntalbahn. In addition, the Christianshütte was expanded into a tourist destination, with a restaurant, a bowling alley, a guest house with a dining hall and the observation tower.
The observation tower stands on the site of a former building in which coal was stored, which was needed for the smelting of iron ore. A stone with the year 1783, which is integrated into the tower, probably comes from the coal storage facility, which falsely gives the impression that the tower was built in 1783. However, the tower has no connection to a blast furnace, as its shape and foundation show. The actual blast furnaces and cupola furnaces of the iron foundry were located to the south, where their locations can still be seen today.
Between 1783 and 1869, three companies (Hähntjens & van Hees, Handelshaus Mertens Frankfurt, Buderus) processed iron ore into furnace plates and furnaces at the Christianshütte. The Christianshütte had nothing to do with lime processing; the lime works was located at Schupbach station in the direction of Gaudernbach.