Petrified Forest of José de Ormachea

The Petrified Forest of José de Ormachea is a natural monument in Sarmiento, Chubut Province, Argentina, containing fossilized tree trunks from ancient coniferous species. The site spreads across the Patagonian steppe and displays remains of forests that grew millions of years ago.

Scientists discovered this geological formation in the 20th century and quickly recognized its paleontological importance for research. The government protected the area by law and made it a key location for studying prehistoric life.

The visitor center displays fossils and artifacts that tell the story of how this Patagonian region changed over time. These collections help travelers understand the ancient landscapes and life forms that once thrived here.

Visitors walk along marked paths through the petrified trees, and guided tours help most people understand the fossils better. It is wise to bring comfortable shoes and sun protection, as the route crosses open steppe with little shade.

The fossils come from 65 million years ago, when this harsh area was much warmer with thick forests along riverbeds. The stark contrast between that ancient landscape and today's dry climate shows the dramatic transformation of this region.

GPS coordinates: -45.78333,-68.95000

Latest update: December 9, 2025 18:42