Wilderness Landscape & Natural Heritage
Los Altares Natural Monument is located in the province of Chubut, Argentina, along the northern banks of the Chubut River in the Patagonian steppe. Established in 1985, this monument protects a spectacular stretch of volcanic sandstone cliffs that rise dramatically up to 70 meters (230 feet) above the river valley, creating one of the most impressive geological landscapes in Patagonia. The name 'Los Altares' (The Altars) reflects the altar-like shape of these natural rock formations.
This area is ecologically significant as it lies within the Patagonian steppe biome, featuring xerophytic shrublands and grasses adapted to the semi-arid climate. The cliffs and their surroundings provide habitat for a variety of wildlife including guanacos, foxes, rheas, and numerous bird species. Moreover, the monument is an important paleontological site due to its extensive fossil records dating back to the Mesozoic era, offering insights into prehistoric flora and fauna.
Recreation opportunities include hiking along trails that meander at the base of the cliffs, birdwatching, photography of the scenic rock formations and river views, as well as guided tours highlighting the area's geology and paleontology. Visitors can also engage in cultural exploration by learning about local indigenous history and contemporary rural communities nearby. The natural monument's remote location provides a peaceful atmosphere for outdoor enthusiasts, making it an appealing destination for nature lovers and geologists alike.
