The Tech Valley in the Pyrénées-Orientales department stretches for about ten miles (fifteen kilometers), from the village of Arrens to Plan d'Aste. This valley is appreciated by hikers, mountaineers, and other mountain regulars for its access to numerous refuges such as those of Migouélou and Ledormeur. It is also well known to fishermen thanks to the Lac du Tech (Tech lake). The eponymous village is a very small village located along the Tech, the southernmost coastal river in the department. The village is part of the Vallespir, an unspoiled mountain valley that is in Roussillon.