Tosa d'Alp or La Tosa is a 2,587-metre-high (8,488 ft) mountain in Baixa Cerdanya in the Spanish Pyrenees.

[1] The Coll de Pal is a mountain pass that separates its eastern part from the Puigllançada.

This mountain forms a quadripoint where the Alp, Urús, Das and Bagà municipal limits meet.

Part of its slopes are home to the ski resort of Masella which is part of Alp 2500.

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