The Immental is a small valley on the western hillside of the Roßkopf. It was mentioned for the first time in a written document of the year 1234 as Winmarsthal. Across this valley and Herden runs the stream Immentalbach. Above there is a fountain whose enclosure consists of rocks. For many citizens of Freiburg its drinking water was of great importance in the 1940s after the collapse of the city's infrastructure as a consequence of the massive bombardment on November 27, 1944 in World War II.