The Sierras Pampeanas are a series of mountain ranges located in the central region of Argentina. They are part of the larger Andes mountain system and are characterized by their rugged terrain and unique geological formations. The ranges include notable peaks such as Cerro de la Ventana and Cerro Champaquí, which are popular destinations for hiking and outdoor activities. These mountains are primarily composed of ancient rocks and are rich in minerals. The Sierras Pampeanas also play a significant role in the local climate, influencing rainfall patterns in the surrounding areas. Their diverse ecosystems support various flora and fauna, making them an important area for biodiversity.