Pic del Segre, Mountain summit at 2843 meters in Queralbs and Llo, Spain and France.
Pic del Segre is a mountain summit at 2843 meters standing between Catalonia and French Cerdagne on the Spain-France border. The peak rises from the valley floor with steep slopes formed by sandstone and lutite rock layers.
The mountain has marked the natural border between Spain and France since the Treaty of the Pyrenees in 1659. This agreement established the peak as a lasting geographical reference between the two nations.
The summit sits on the boundary between Catalonia's Ripollès region and French Pyrénées-Orientales, where mountain communities have developed distinct local traditions. The border location has shaped how people from each side relate to the landscape and to each other.
Access to the summit is possible via marked trails starting from Vall de Núria, though the climb requires proper mountain gear and careful weather monitoring. Visitors should prepare for the high altitude and allow ample time for the demanding ascent.
The Segre River, which flows through northeastern Spain, originates near this peak and supplies water systems in both countries. This hydrological connection makes the mountain a quiet source of rivers and streams that travel hundreds of kilometers downstream.
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