Lac d'Arrious is a lake in Pyrénées-Atlantiques, France. At an elevation of 2285 m, its surface area is 0.025 km².
Geography Lake d'Arrious is a natural inland body of water, fed by snowmelt and glacial melt. It lies at an altitude of 2,285 meters. It is part of the Pyrenees National Park. Its overflow feeds the Arrious stream, which flows into the Gave de Brousset river.
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