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The Alpstein are a subgroup of the
Appenzell Alps The Appenzell Alps (german: Appenzeller Alpen) are a mountain range in Switzerland on the northern edge of the Alps. They extend into the cantons of Appenzell Ausserrhoden, Appenzell Innerrhoden and St. Gallen and are bordered by the Glarus Alps ...
in
Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
. The Alpstein massif is in
Appenzell Innerrhoden Appenzell Innerrhoden (; in English sometimes Appenzell Inner-Rhodes) (german: Kanton Appenzell Innerrhoden rm, Chantun Appenzell Dadens; french: Canton d'Appenzell Rhodes-Intérieures; it, Canton Appenzello Interno) is one of the 26 cantons ...
,
Appenzell Ausserrhoden Appenzell Ausserrhoden (; in English sometimes Appenzell Outer Rhodes) (german: Kanton Appenzell Ausserrhoden; rm, Chantun Appenzell Dadora; french: Canton d'Appenzell Rhodes-Extérieures; it, Canton Appenzello Esterno) is one of the 26 canton ...
and
St. Gallen , neighboring_municipalities = Eggersriet, Gaiserwald, Gossau, Herisau (AR), Mörschwil, Speicher (AR), Stein (AR), Teufen (AR), Untereggen, Wittenbach , twintowns = Liberec (Czech Republic) , website ...
. Despite it being rather low when compared to other Alpine peaks – the highest mountain is the
Säntis At above sea level, Säntis is the highest mountain in the Alpstein massif of northeastern Switzerland. It is also the culminating point of the whole Appenzell Alps, between Lake Walen and Lake Constance. Shared by three cantons, the mountain ...
at 2502 metres – the Alpstein, due to their northern "outpost" position only a short distance from
Lake Constance Lake Constance (german: Bodensee, ) refers to three Body of water, bodies of water on the Rhine at the northern foot of the Alps: Upper Lake Constance (''Obersee''), Lower Lake Constance (''Untersee''), and a connecting stretch of the Rhine, ca ...
(nearly 30 km) are relatively tall when compared to the surrounding area. The range also includes the
Altenalp Türm The Altenalp Türm (2,033 metres) is a peak of the Alpstein massif, located in the canton of Appenzell Innerrhoden, on the ridge between Ebenalp and the Säntis At above sea level, Säntis is the highest mountain in the Alpstein massif o ...
as the northernmost summit above 2,000 metres in Switzerland.


Description

Geologically, the Alpstein massif is different from the predominantly
granitic A granitoid is a generic term for a diverse category of coarse-grained igneous rocks that consist predominantly of quartz, plagioclase, and alkali feldspar. Granitoids range from plagioclase-rich tonalites to alkali-rich syenites and from quart ...
central
Alps The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Sw ...
. Alpstein are predominantly limestone
massif In geology, a massif ( or ) is a section of a planet's crust that is demarcated by faults or flexures. In the movement of the crust, a massif tends to retain its internal structure while being displaced as a whole. The term also refers to a ...
and thus represents a kind of western continuation of the eastern ranges, running between
Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe ...
and
Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...
. Because of erosions, numerous cracks, caves and sinkholes which prevail in the limestone, two of the three lakes have no surface drainage: the water of the Fälensees flows by the mountain ridge southwest into the
Rhine ), Surselva, Graubünden, Switzerland , source1_coordinates= , source1_elevation = , source2 = Rein Posteriur/Hinterrhein , source2_location = Paradies Glacier, Graubünden, Switzerland , source2_coordinates= , so ...
. Morphologically, there are three main tectonic folds running from southwest to northeast. Only the Lisengrat, the connection between the two peaks Säntis Altman runs perpendicular to the main ridge. Between these mountain ranges are embedded in


External links


Interactive spherical panorama tour through the Alpstein
{{Authority control Mountain ranges of Switzerland Appenzell Alps