... produces around a quarter of Chile's wine. It's one of four "sub–regions" of the Central Valley region, along with the Maipo, Curicó and Maule valleys.
The Rapel Valley is itself divided into two named parts: the Cachapoal and Colchagua valleys. These are respectively the northern and southern parts of the Rapel Valley. According to Wikipedia, "Colchagua Valley is one of the best–known wine regions of Chile ... best known for its full–bodied Malbecs, Cabernet Sauvignons, Carmeneres and Syrahs."© Haydn Thompson 2023