Rotbach (Dreisam)

The Mathisleweiher is a large bog lake, under 2 hectares in area, in the Black Forest in southern Germany. It lies in the High Black Forest between Feldberg in the west and the Titisee in the east on the territory of Hinterzarten at about 999 m above NN southwest of the village in the Eschengrundmoos Nature Reserve. The pond impounds the Zartenbach which flows through it from west-southwest to east-northeast. The stream rises on the eastern slopes of the Ramselehöhe (1,112 m above NN) at about 1,055 m above NN, picks up the Eschengrundmoosbach from the right from the protected bog and runs for less than a kilometre before entering the lake. A shorter stream runs from the north from the woods of the Stuckwald. It has a catchment of 1.0 km2The lake is accessible from Hinterzarten but only on foot. A path runs from the village passing close to the lake and a spur branches off to the east shore. Together with the Mathislehof, Mathislemühle and Mathislewald the pond belongs to the Müller-Fahnenberg Foundation of the University of Freiburg.

Hinterzarten is a resort village in the Black Forest (German: Schwarzwald), located in the southwest of the state of Baden-Württemberg, Germany. Although Hinterzarten is mostly famous for its ski jumping, it has many other tourist attractions.

The Adler Ski Stadium (German: Adler-Skistadion) is a ski jumping complex in Hinterzarten, Germany.

Birklehof School (German: Schule Birklehof) is a progressive educational boarding school and grammar school with a holistic approach located in Hinterzarten in the High Black Forest in Germany, approximately 25 km from Freiburg. It is a private coeducational secondary school (German: Gymnasium). Currently, the school has approximately 230 students, 170 of whom are boarders who live on campus. The school was established by educator Kurt Hahn in 1932 and from the beginning accepted girls and boys. Under the Nazi regime, Hahn was forced to emigrate to Scotland where he founded Gordonstoun School as well as later Outward Bound, Round Square and the United World Colleges.

The Ravenna Bridge is a 58-metre (190 ft) high and 225-metre (738 ft) long railway viaduct on the Höllental Railway line in the Black Forest, in Breitnau, Breisgau-Hochschwarzwald, Baden-Württemberg, Germany. The bridge crosses the Ravenna Gorge that ends in the upper Höllental valley, and has a grade of 12 metres (39 ft). The origin of the name most likely comes from the French ravin for gorge.

The Ravenna Gorge (German: Ravennaschlucht) is a gorge in the Black Forest in southwest Germany. It is a narrow side valley of the Höllental, through which the Ravenna stream flows. A trail also runs through the ravine as part of the Black Forest Homeland Path (Heimatpfad Hochschwarzwald). The roughly four-kilometre-long gorge runs from the Höllental up to the village of Breitnau on the plateau and lies within its municipal boundaries. The name of the gorge is probably derived from the French word ravine which means "gorge".The wild mountain brook of the Ravenna tumbles over several waterfalls in the gorge. The two biggest falls are the Great Ravenna Fall (Großer Ravennafall) which is 16 metres high and the Little Ravenna Fall (Kleiner Ravennafall) which descends through a height of 6 metres. In former times, there were several water mills along the stream. Some are still visible today within the gorge and one or two are well preserved. At the upper end of the gorge is the mill of Großjockenmühle which dates to 1883 and is a protected monument. A feature of this mill is that, due to the steep descent of the Ravenna, the water is led over the roof of the mill onto the water wheel. The lower part of the gorge is spanned by the 37-metre-high Ravenna Bridge, the viaduct of the Höllental Railway. Also here is Saint Oswald’s Chapel (built 1148) and the Hotel Hofgut Sternen, in which Marie Antoinette stayed in 1770 and Goethe in 1779. In front of the Ravenna Bridge is the Galgenbühl, a knoll about 30 metres high. There used to be a gallows (Galgen) here, where executions were carried out. Later a pavilion was built here which fell into ruins over the course of time. The slopes were originally used as pasture, but in the 1950s the mountain was afforested with spruce and Douglas fir. In 2010 all the trees were felled, however, and a new pavilion erected on the Galgenbühl. It is covered with shingles made of thuja wood.

St. Oswald’s Chapel (German: St. Oswald-Kapelle) lies in the Höllental in the High Black Forest, at its eastern end near the Ravenna Bridge. Administratively it lies in the civil parish of Steig in the municipality of Breitnau in the county of Breisgau-Hochschwarzwald in the German state of Baden-Württemberg. Ecclesiastically it belongs to the parish of Hinterzarten. The chapel is dedicated to Oswald of Northumbria, a 7th-century Anglo-Saxon king. He is depicted in several places on the main altar of the chapel..

Feldberg is a municipality in the district of Breisgau-Hochschwarzwald in Baden-Württemberg in southern Germany. It is located near the Feldberg, the highest summit in Baden-Württemberg. It comprises the settlements of Altglashütten, Neuglashütten, Falkau, Bärental, and Feldberg. At an elevation of 1,277 m, the last is considered the highest village in Germany.

The Feldberg Pass (el. 1231 m.) is a high mountain pass in the Black Forest in the state of Baden-Württemberg and the second highest in Germany. It is south of the Feldberg peak, and the road runs through the town of Feldberg. The B 317 federal highway connects Todtnau and Titisee-Neustadt. The maximum incline is 1 in 10 (10%).

The Windgfällweiher is a reservoir between the Titisee and the Schluchsee in the south of Baden-Württemberg, Germany. It is located within the High Black Forest and lies in a hollow formed by ice age glaciation between the villages of Altglashütten, Falkau and Aha on the territory of the municipality of Lenzkirch. The lake lies in a trough that runs from the Seebach valley in the northwest to the Schluchsee in the southeast and thus crosses the generally northeastward-running streams in the area. This remnant of a former valley is followed by the Three Lakes Railway that was built between 1920 and 1926 and by the transfer channel (Überleitungskanal), built in 1932 and belonging to the Schluchseewerk, which takes water from the Seebach valley via the Haslach valley to the Schluchsee Basin. North of the low-lying watershed in this trough, between the Haslach in the north and the Ahabach in the south, now drowned by the impounded Schluchsee, the glacier of the last ice age carved out a basin, in which a small bog lake formed, the natural precursor to today's reservoir. This was enlarged in 1895 by the former Falkau Screw Works (Schraubenfabrik Falkau) with a dam in the north and the water surface raised by about 6 metres. At the same time the lake, which had only hitherto been fed from the east by the Kähnerbächle, was given another inflow in the form of a small leat (Hangkanal) from the southwest. Since 1932 the Windgfällweiher has been incorporated into the transfer of water from the Seebach to the Schluchsee (covered leat) and drained since then in the opposite direction i.e. to the south. The water is led via a ditch over the low watershed, initially as the Windgefällbach and later, the Schwarzach, into the Schluchsee. Since 1950 the lake has been protected. In 2002 an angling and fish consumption ban was announced, because PCB had been discovered in the sediment depositions on the bottom of the lake.On the wooded eastern shore of the Windgfällweiher, a lake barely touched by the streams of visitors to the area, lies a rather less picturesque bathing beach with a listed building.The Windgfällweiher, together with the Schluchsee and Titisee, contributed to the name of the Three Lakes Railway.