On the GEOLAG blog, we share popular geology articles to help you interpret the landscape, understand natural heritage, and discover the history of the Earth written in rocks, fossils, mountains, coasts, and caves.
A space to explore geotourism, geological routes, environmental education, and Earth Sciences from a rigorous, approachable, and accessible perspective.
As Catedrais Beach, in Ribadeo, is much more than one of Galicia’s most visited landscapes. Its slate and schist cliffs, shaped by waves and tides, provide a live demonstration of how geology transforms the coastline. Arches, columns, fractures, and landslides turn this protected enclave into a window into our planet’s past and a natural laboratory for understanding coastal processes.
Salave hides one of Asturias’ great geological treasures: gold, Roman mining, and a landscape shaped by water. An educational route to discover how the Silva Lakes formed and why this area deserves to be protected.
Beneath its streets, Oviedo hides a geological history marked by Paleozoic rocks, aquifers, caves, minerals, and old quarries. A tour to discover how geology has shaped the city’s landscape, water, mining, and architectural heritage.
Oviedo hides spectacular fossils in the rocks used in its streets and sidewalks. An urban tour to discover ammonites, rudists, gastropods, and corals without leaving the city—ideal for families, groups, and schools.
Why are there lakes in an area dominated by limestone? The Somiedo Lakes hide a story of glaciers, dolomitisation, iron mining and unique high-mountain landscapes in Asturias.
The Arnao Mine combines mining history, geology, and industrial heritage in a unique setting by the sea. Its tunnels, mine shaft, and the fossils on the beach make this visit an educational experience ideal for families and schools.
Barayo is much more than just a beach: it is a protected estuary where the geology explains the shape of the landscape, the course of the river, the dunes, and the cliffs. It’s the perfect excursion for exploring the Cantabrian coastline from a geological perspective.
The Route of the Xanas lets you discover one of Asturias’ most spectacular gorges through a geological lens. A trail through limestone, sandstone, faults, folds and water-carved landscapes, ideal for interpreting the formation of this gorge between Proaza, Serandi and Pedroveya.
The Sierra del Sueve combines karst geology, unique forests, and iconic wildlife at one of the best viewpoints in Asturias. A journey through sinkholes, Asturcones, fallow deer, Picu Pienzu, and the La Biescona beech forest overlooking the Cantabrian Sea.
The Cantabrian Mountains are the result of millions of years of tectonic collisions, tropical seas, glaciers, and erosion. An accessible explanation to help you understand how its mountains, limestone formations, caves, and iconic landscapes—such as the Picos de Europa and Peña Ubiña—were formed.
Geotourism allows you to discover the landscape through its fossils, minerals, caves, mines, cities, and archaeological sites. A form of experiential tourism that combines science, nature, history, and the conservation of geological heritage.
Discover the Geosites Network in Asturias with GEOLAG. Explore gems of international interest such as Picos de Europa or El Sidrón Cave. The fascinating history of the Earth awaits you!
