What type of wine is predominantly produced in the Colchagua Zone?

Colchagua Zone, located in Chile, is renowned for its red wine production, particularly its full-bodied reds. The climate and geographical conditions of this region are ideal for growing grape varieties that contribute to rich, concentrated red wines. The valley's warm temperatures and diurnal temperature variation allow for optimal ripening of grapes, resulting in wines that are often high in alcohol, rich in tannins, and complex in flavor. Notably, varieties such as Cabernet Sauvignon, Merlot, and Carmenere thrive here, producing wines that are well-structured and age-worthy.

While the region may produce other wine styles, the reputation and majority of production are centered around robust red wines, which is why full-bodied reds are the correct choice.