The Austrian exclave connected to the rest of Austria at a single point and otherwise surrounded by Germany is Jungholz. It is a municipality in Tyrol that is accessible by road only through Germany.
Jungholz is technically a pene-exclave rather than a completely detached island of territory. Its only connection to Austria is the summit of Sorgschrofen, where the Austrian and German borders meet at a quadripoint. Four municipalities converge there: Austrian Jungholz and Schattwald, plus German Pfronten and Bad Hindelang.
The settlement’s isolation shaped its history. A customs union with Germany began in 1868, and Jungholz used the German mark until the euro replaced it in 2002. Before Austria joined the European Union’s customs system in 1995, the village’s economic and postal arrangements often reflected its practical connection to Germany. It is therefore not Kufstein, Feldkirch, or Lienz, all of which have ordinary territorial connections to Austria.