beautiful wondrous clouds in the autumn swiss sky above the rhine valley and the alpstein massif, sevelen - canton of st. gallen

alp alpine alps alpstein autumn background beautiful beauty blue canton clear cloud clouds cloudscape colorful cumulus day earth ecological ecology environment flight gallen global heaven high highlands hiking horizon idyllic landscape light massif mountains nature outdoor outdoors panorama panoramic peak range rhine scene scenery scenic schweiz sevelen sky summer summit sunlight sunny sunshine swiss switzerland valley view wanderlust warming weather white wild wondrous