The Alps was a European mountain range. One of the countries it stretched across was Switzerland.
In the 3rd century BC, the Doctor accompanied Hannibal as he crossed the Alps. (PROSE: Shadowmind) To cross the mountains, Hannibal used vinegar to dissolve boulders. (TV: World War Three)
In 1913, Harding Wellman was killed while mountaineering in the Alps.
On 22 December 1963, Nyssa was accidentally teleported to the Swiss Alps, as the Spillagers were close to reaching Earth. (AUDIO: Winter for the Adept)
In 2547, there was a local war in the Alps. (PROSE: So Vile a Sin)
In the 31st century, many copies of the mountain range were created in Europa. (PROSE: Managra)