Universities Handbook of Switzerland

About Graubunden:

Graubuenden or Grisons (German: Graubuenden; Italian: Grigioni; Romansh: Grischun) is the largest and easternmost canton of Switzerland. The canton shares international borders with Italy (Trentino-Alto Adige/South Tyrol and Lombardy), Austria (Vorarlberg) and Liechtenstein. The name Graubuenden translates as the "Grey Leagues," referring to the canton's origin in three local alliances, the League of God's House, the Grey League, and the League of Ten Jurisdictions. Grisons is also home to three of Switzerland's ethnic groups and the subsequent languages of Swiss German, Italian and Romansh are all native to the province. It is also the only canton where the ancient Romansh dialects are still spoken.

The area of this largest of the cantons of Switzerland is 7,105.2 square kilometres (2,743.3 sq mi).[4] Only about a third of this is commonly regarded as productive land of which forests cover about a fifth of the total area.[4] The canton is entirely mountainous, comprising the highlands of the Rhine and Inn river valleys. In its southeastern part lies the only official Swiss National Park.