The Weissfluhjoch is a summit southeast of the Weissfluh situated in the Plessur Range in Graubünden, Switzerland. Since 1932, a funicular railway leads to its summit from Davos. On the Weissflujoch, there used to be several laboratories of the Institute for Snow and Avalanche Research, a division of the Swiss Federal Institute for Forest, Snow and Landsc…The Weissfluhjoch is a summit southeast of the Weissfluh situated in the Plessur Range in Graubünden, Switzerland. Since 1932, a funicular railway leads to its summit from Davos. On the Weissflujoch, there used to be several laboratories of the Institute for Snow and Avalanche Research, a division of the Swiss Federal Institute for Forest, Snow and Landscape Research. However, while there is still a test site at the location, the institute building was sold to Davos Klosters Bergbahnen Ltd in 2019.