panorama of a snowy landscape with hiker in sierra nevada

high mountain siliceous perennial gramineae national park mulhacen borreguiles piorno genista versicolor singularity environment territory endemism europe places landscapes glaciers southern summit scrubland sierra nevada grasslands vegetation bioclimatic cryo mediterranean height massif cordillera bacopy tica sistema penibacopy tico granada reserve biosphere botanical landscape pines pine forest snowfields hikers path activity tour hiking walkers walk climb andalusia spain snow cloudy snowing panorama snowy hiker