St. Anton Pass - AbsoluteAstronomy.com

St. Anton Pass is a high mountain pass

Mountain pass

A mountain pass is a route through a mountain range or over a ridge. If following the lowest possible route, a pass is locally the highest point on that route...

in the Alps

Alps

The Alps is one of the great mountain range systems of Europe, stretching from Austria and Slovenia in the east through Italy, Switzerland, Liechtenstein and Germany to France in the west....

between the cantons

Cantons of Switzerland

The 26 cantons of Switzerland are the member states of the federal state of Switzerland. Each canton was a fully sovereign state with its own borders, army and currency from the Treaty of Westphalia until the establishment of the Swiss federal state in 1848...

of Appenzell and St. Gallen in Switzerland

Switzerland

Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....

.

It connects Ruppen Pass

Ruppen Pass

Ruppen Pass is a high mountain pass between the cantons of St. Gallen and Appenzell Ausserrhoden in Switzerland.It connects Trogen and Altstätten. The pass road has a maximum grade of 9 percent.-See also:* List of highest paved roads in Europe...

and Oberegg

Oberegg

Oberegg District is a district in the canton of Appenzell Innerrhoden in Switzerland. It comprises two small exclaves of the canton, a few miles northeast of the rest of Appenzell Innerrhoden.-History:Oberegg is first mentioned in 1470 as a village...

, St. Gallen.