The Hochpustertal (High Puster Valley, it, Alta Pusteria) is the easternmost part of the

Puster Valley The Puster Valley ( it, Val Pusteria ; german: Pustertal, ) is one of the largest longitudinal valleys in the Alps that runs in an east-west direction between Lienz in East Tyrol, Austria, and Mühlbach near Brixen in South Tyrol, Italy. The S ...

, stretching from the watershed of the Rienz and

Drava The Drava or Drave''Utrata Fachwörterbuch ...

rivers at Niederdorf in

South Tyrol it, Provincia Autonoma di Bolzano – Alto Adige lld, Provinzia Autonoma de Balsan/Bulsan – Südtirol , settlement_type = Autonomous province , image_skyline = , image_alt ...

down the Drava to

Lienz Lienz (; Southern Bavarian: ''Lianz'') is a medieval town in the Austrian state of Tyrol. It is the administrative centre of the Lienz district, which covers all of East Tyrol. The municipality also includes the cadastral subdivision of ''Pat ...

East Tyrol East Tyrol, occasionally East Tirol (german: Osttirol), is an exclave of the Austrian state of Tyrol, separated from the main North Tyrol part by the short common border of Salzburg and Italian South Tyrol (''Südtirol'', it, Alto Adige). It i ...

, Austria. The area includes the

Sexten Sexten (; it, Sesto ) is a ''comune'' in South Tyrol in northern Italy. The village is famous as a summer and winter sport resort in the mountains. According to the 2011 census, 95.37% of the population speak German, 4.36% Italian and 0.27% Ladin ...

and

Prags Prags (; it, Braies ; Ladin: ''Braies'') is a ''comune'' (municipality) in South Tyrol in northern Italy, located about northeast of Bolzano. Geography As of 30 November 2010, it had a population of 657 and an area of .All demographics and oth ...

side valleys. According to the 1915

London Pact The Treaty of London ( it, Trattato di Londra) or the Pact of London () was a secret agreement concluded on 26 April 1915 by the United Kingdom, France, and Russia on the one part, and Italy on the other, in order to entice the latter to enter ...

and the 1919 Treaty of Saint-Germain-en-Laye, the Italian-Austrian border was drawn between Innichen (San Candido) and Sillian. As the Rienz-Drava watershed near

Toblach Toblach (; it, Dobbiaco ) is a ''comune''/''Gemeinde'' (municipality) in South Tyrol in northern Italy, located in the Puster Valley about northeast of the city of Bolzano, on the border with Austria. Geography As of November 30, 2010, it had ...

(called ''Toblacher Feld'' or ''Sella di Dobbiaco'') is a rarely notable transition, the natural western boundaries of the Hochpustertal vary. Usually, in the valley the following municipalities are included: * Niederdorf,

, and Innichen in South Tyrol, * Sillian, Strassen,

Abfaltersbach Abfaltersbach is a municipality in the district of Lienz in the Austrian state of Tyrol Tyrol (; historically the Tyrole; de-AT, Tirol ; it, Tirolo) is a historical region in the Alps - in Northern Italy and western Austria. The area was ...

Assling Assling is a municipality in the district of Lienz in the Austrian state of Tyrol Tyrol (; historically the Tyrole; de-AT, Tirol ; it, Tirolo) is a historical region in the Alps - in Northern Italy and western Austria. The area was hist ...

, and

Leisach Leisach is a municipality in the district of Lienz in the Austrian state of Tyrol Tyrol (; historically the Tyrole; de-AT, Tirol ; it, Tirolo) is a historical region in the Alps - in Northern Italy and western Austria. The area was histor ...

in East Tyrol.

References

Austrian Alpenverein

Alpenverein South Tyrol
Valleys of Tyrol (state) Valleys of South Tyrol {{Tyrol-geo-stub