Petrified Forest Sarmiento is a protected natural area in Chubut Province, Argentina, located near the town of Sarmiento and known for the remains of ancient forests preserved within a distinctive Patagonian landscape. Visitors can follow walking trails, observe fossilised logs, branches, leaves and seeds, and enjoy views from designated lookouts across the surrounding area. A notable feature of the site is the abundance of petrified plant remains, which date back around 65 million years and provide evidence of a time when the region was covered by a green, humid forest rather than the steppe environment seen today.