Covadonga Lakes

Covadonga Lakes
Name	Covadonga Lakes
Caption	Lakes in the Picos de Europa
Location	Picos de Europa, Asturias, Spain
Type	Glacial lakes
Inflow	Mountain streams
Outflow	Río Cares
Basin countries	Spain
Elevation	1134 m

Covadonga Lakes The Covadonga Lakes are a pair of high-altitude glacial lakes located in the Picos de Europa within the Asturias region of northern Spain. The lakes lie in a karstic cirque beneath peaks such as Torre de La Palanca and serve as notable features of the National Park of Picos de Europa and the Parque Nacional de los Picos de Europa. Renowned for their connection to regional identity, religious pilgrimage, and alpine ecology, the lakes are central to local landscapes frequented by visitors from Oviedo, Gijón, and beyond.

Geography

The lakes occupy a cirque carved into the Limestone Alps of the Cantabrian Mountains in the municipal area of Cangas de Onís near the shrine of Santa Cueva de Covadonga and the sanctuary of Nuestra Señora de Covadonga. The upper lake, traditionally called Enol, and the lower lake, known as Ercina, sit at elevations above the Sierra de Cuera foothills and below summits including Torre del Llambrión and Pico Urriellu (Naranjo de Bulnes). Road access follows a steep mountain route from Covadonga village via the AS-114 and connects with trails toward the Ruta del Cares, the Fuente Dé cableway region, and paths that join the GR 202 long-distance trail network. Surrounding municipalities include Aller, Ponga, and Llanes, and the area forms part of the Cantabrian mixed forests biogeographic zone.

Formation and Hydrology

Formed during the Quaternary glaciation episodes, the lakes occupy a trough scoured by valley glaciers associated with the Pleistocene ice advances that shaped much of the Cantabrian Mountains. Bedrock of Carboniferous limestone, dolomite and karst features controls groundwater flow, with springs originating near the Covadonga Cave and subterranean channels feeding the basin before discharge into the Río Sella and ultimately into the Bay of Biscay. Seasonal snowmelt from peaks such as Torres de Liordes and rainfall patterns influenced by the North Atlantic Oscillation produce strong seasonal variation in inflow, while sinkholes and subterranean drainage similar to systems in Ordesa y Monte Perdido National Park modulate retention time and clarity.

History and Cultural Significance

The lakes and adjacent sanctuary are bound to the medieval history of the Kingdom of Asturias and the legendary Battle of Covadonga, associated with figures like Don Pelayo and the early Reconquest narratives. The Santa Cueva de Covadonga chapel, carved within a limestone grotto near the lakes, became a pilgrimage focus linked to the Congregation of the Brotherhood of Our Lady of Covadonga and to monarchs including Alfonso I of Asturias and Fruela I. In the modern era, the site figured in regional identity during the 19th-century Spanish Liberal Wars and the cultural revival movements associated with the Asturian Regionalist League. The lakes have appeared in travel accounts by writers such as R. F. Burton and artists connected to the Romanticism movement, and they feature in contemporary events like stages of the Vuelta a España cycling race.

Flora and Fauna

The basin supports montane communities of European beech woodlands and Scots pine stands transitioning to alpine grasslands dominated by species recorded in inventories by the Spanish National Research Council and researchers affiliated with the University of Oviedo. Notable flora includes endemic and relict taxa comparable to those in Picos de Europa National Park botanical surveys, and lichens and mosses adapted to high precipitation. Faunal assemblages record presence of Cantabrian brown bear historical range, Cantabrian capercaillie habitats, and populations of Iberian wolf in surrounding ranges, while alpine species such as the chamois (gamuza), Pyrenean desman, and birdlife including golden eagle, griffon vulture, and peregrine falcon are observed. Aquatic communities include cold-water invertebrates described in studies linked to the Instituto Español de Oceanografía and trout populations similar to those managed under regional angling associations.

Tourism and Recreation

Access from Covadonga and the nearby towns of Arriondas and Cangas de Onís makes the lakes focal points for pilgrimage, hiking, and nature tourism promoted by the Principality of Asturias tourism board. Popular activities include guided excursions organized by operators collaborating with the Parque Nacional de Picos de Europa authority, interpretive routes that link to Lagos de Enol trails, and cycling ascents featured in professional races such as the Vuelta a España and occasional Tour of Asturias stages. Visitor management measures mirror practices used at sites like Aigüestortes i Estany de Sant Maurici National Park and Ordesa y Monte Perdido, with seasonal shuttle buses, designated viewpoints, and mountain refuges maintained by the Federación Española de Deportes de Montaña and local clubs like the Club Alpino Español.

Conservation and Management

The lakes fall within the Picos de Europa National Park boundaries and are subject to protections under Spanish and European Union frameworks including the Natura 2000 network and regional environmental regulations administered by the Consejería de Medio Rural y Cohesión Territorial of Asturias. Management integrates habitat monitoring, visitor quotas, and collaborations with scientific institutions such as the University of Cantabria and the Museo del Pueblo de Asturias for cultural heritage conservation. Threats addressed in management plans include climate change impacts studied by teams from the Spanish National Research Council (CSIC), invasive species interventions modeled on programs in the Doñana National Park, and coordination with UNESCO biosphere reserve initiatives analogous to those in Somiedo Natural Park.

Category:Lakes of Asturias Category:Picos de Europa Category:Glacial lakes of Spain