Forggensee

Forggensee
Aerial view of the Forggensee
LocationOstallgäu
Construction began1950–1954
Dam and spillways
ImpoundsLech, Füssener Ache, Mühlberger Ache
Height (foundation)41 m
Height (thalweg)37 m
Length320 m
Elevation at crest785 m above sea level (NHN)
Width (crest)10 m
Dam volume650,000 m3
Reservoir
Active capacity168 Mm3
Catchment area1,594 km2
Surface area15.2 km2
Maximum length8.7 km
Maximum width2.8 km
Normal elevation780.5 m above sea level (NHN)
The Forggensee from the north. In the background are the Tegelberg, Säuling, Thaneller and Tannheim Mountains, Neuschwanstein Castle may be seen in the foothills to the left; to the right is Füssen

The Forggensee, also called the Roßhaupten Reservoir, is a reservoir located north of Füssen in the county of Ostallgäu in Bavaria, Germany and one of many lakes in the region around Hohenschwangau and Neuschwanstein castles. With a surface area of 15.2 km2, it is the fifth-largest lake in Bavaria and the largest reservoir in Germany by area. The River Lech flows through it. The Forggensee is known primarily as a tourist destination for aquatic sports and recreation. Besides Füssen, other settlements on the lake include Halblech, Rieden am Forggensee and Roßhaupten. The lake takes its name from the former hamlet of Forggen which has been submerged by the reservoir.