Arrietabaso

Arrietabaso rises to 1018 meters and serves as the highest point of the Eskuagatx massif within the Duranguesado mountain range. The summit overlooks rolling terrain and offers views across neighboring peaks and valleys.

The name originates from three Basque words: 'arri' meaning stone, 'eta' meaning and, and 'baso' meaning forest, reflecting the terrain's natural features. This naming convention reveals how the landscape has been understood and described through language for centuries.

The summit lies within Urkiola Natural Park, where nearby communities actively use traditional walking routes and care for the landscape. Hiking here connects visitors to a long-standing local tradition that continues today.

Three main routes approach the summit from Mañaria, Urkiola, and Dima, with hiking durations between 2 to 2.5 hours depending on your chosen path. Sturdy footwear and water are essential, and starting early allows you to experience good light and less crowded trails.

The mountain's limestone structure contains preserved fossil remnants of corals, large rudist shells, and oyster fossils embedded in gray rock. These ancient deposits reveal that this highland once lay beneath an ancient sea.