Die Drossensperre ist die kleinere der beiden Staumauern des Speichers Moserboden der Tauernkraftwerke Kaprun. Die Gewölbemauer wurde 1955 erbaut, es wurden 335.000 m³ Beton verbaut. Die Staumauer ist 357 m lang, 112 m hoch und an der Basis 25 m dick.
Salzburg is the fourth-largest city in Austria and the capital city of the federal state of Salzburg.Salzburg's "Old Town" (Altstadt) has internationally renowned baroque architecture and one of the best-preserved city centres north of the Alps. It was listed as a UNESCO World Heritage Site in 1997. The city is noted for its Alpine setting.Salzburg was the birthplace of 18th-century composer Wolfgang Amadeus Mozart. In the mid-20th century, the city was the setting for parts of the American musical and film The Sound of Music.The capital city of the State of Salzburg (Land Salzburg), the city has three universities. It has a large population of students who add liveliness and energy to the area, and the universities provide culture to the community. source: wikipedia