Ключевые слова: active tourism, aragon, aragonese pyrenees, arc orogenic europe variscan, body of water, colour, conservation, deep, drinking water, ecosystem, enclosed seas, environmental wealth, evaporation reserve fresh water, flood plain, formed during the cenozoic era, fresh water, geological processes, heritage, huesca province, lake, legal status, mass of water, mirror, mountain range, mountain tourism, native folding mountain range, natural beauty, natural reservoir, nature protection, north of the province of huesca, northeast of the iberian peninsula, park, phytozoogeographic region, protected area, protection, pyrenees, reserve, scientific, sediment, soil moisture, spanishfrench border high mountains, springs, stagnant streams, surface permanent water, surface water hydrology, the pyrenees, thermal inertia, topographic depressions, water phreatic water mirror, wildlife, wildlife refuge,