Alto Biobío National Reserve is a nature reserve located in the easternmost portion of Upper Bío-Bío River basin, in the La Araucanía Region, Chile. The vegetation is dominated by Andean steppe with scattered Araucaria trees.
| Alto Biobío National Reserve | |
|---|---|
IUCN category IV (habitat/species management area) | |
  Map of Chile | |
| Location | La Araucanía Region, Chile |
| Nearest city | Lonquimay |
| Coordinates | 38°37′26″S 70°57′54″W / 38.624°S 70.965°W[1] |
| Area | 350 km2 (140 sq mi) |
| Established | 1912 |
| Governing body | Corporación Nacional Forestal |
Alto Biobío National Reserve is part of the Araucarias Biosphere Reserve.[2]
The reserve is crossed by the route that connects Chile and Argentina via Pino Hachado Pass.