Farmlands and agricultural terraces
Traditionally, farmland is located near streams, and in the case of the Colca Valley, it is associated with the Colca River. In the valley, at an elevation between 3000 m and 4000 m, a system of “andenes” has been built for the purpose of farming. This means that the mountain sides are terraced in order to contain the soil and to store moisture. In the areas of Huanca and Lluta, farmers directly cultivate the slopes. For several centuries, the mountainsides have been cultivated with native food plants, like potatoes, corn, and quinoa, and introduced plants, like wheat, barley, alfalfa, fruits, and other vegetables.