Why is altitude a decisive factor in wine?

Why is altitude a decisive factor in wine?

Most of Argentina’s vineyards are located at high altitude. This country, which is 3800 km long, has several low regions, but has most of its wine production on the edge of the Andes.From the north, with provinces like Salta, Catamarca and Jujuy, with vineyards...
A tasty Malbec with a wide range of flavours:

A tasty Malbec with a wide range of flavours:

When someone tries to approach the Malbec for the first time, this wine is just right for it, because it represents the essence of what this grape is capable of doing. This wine belongs to the chicchiti vineyards. Its grapes come from Lujan de Cuyo, a region at 1200...