lonely hollow oak tree surrounded by pastures in sierra de gredos with background to snowy almanzor peak in freillo. december 15,

almanzor alpine altitude avila castilla central europe freillo glacier gredos high hiking hill hills hollow holm hoya ice landscape leon lonely mountain nature oak outdoor overlooking panorama pastures peak photography range raso rock rocky scenic sierra sistema sky snow snowy spain stone street surrounded through top trail travel tree trekking trip valley walk wild winter