beautiful clouds over the alpine mountain peaks in the river rhine valley and the bundner herrschaft buendner herrschaft region

alp alpine alps background beautiful beauty blue buendner bundner canton clear cloud clouds cloudscape colorful cumulus day earth ecological ecology environment flight global graubuenden grisons heaven herrschaft high highlands hiking horizon idyllic landscape light mainfeld mountain mountains nature outdoor outdoors panorama panoramic peak peaks range region rhine river scene scenery scenic sky summer summit sunlight sunny sunshine switzerland valley view wanderlust warming weather white wild