The Estany Negre, covering an area of 1.5 ha, is located at an altitude of 2,628 m, situated in the glacial cirque formed between the Pic de Sanfonts, the Port de Baiau, and the Pic de Alt de Comapedrosa, at an elevation of 2627 m. It can also be positioned to the SW of the Pic del Comapedrosa.