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.

Pic del Segre lies on the border between the Spanish municipality of Queralbs, in the Ripollès, and the French commune of Llo, in Alta Cerdanya. The Segre has its sources at the foot of its northwestern slope, and the most frequented route to the summit starts at the Núria sanctuary, often combined with the climb to Puigmal. Another route leaves Llo along the path to Núria as far as the Finestrelles peak, then follows the ridge south.

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 rises at the foot of the peak's north-west slope, not at the summit itself, so the true source lies a short walk below the top on the French-Spanish divide. From there the river runs through Lleida and into the Ebro near Mequinenza.