ake palu below piz palu glacier in swiss alps in colorful autumn

alp alpine alps autumn beautiful below bernina blue canton colorful conifer day engadin europe express fall famous forest full glacier golden graubuenden graubunden grisons gruem grum hiking lake landmark landscape larch mountain mountains nature orange palu palue paluesee panorama panoramic park piz poschiavo reservoir scenery snow swiss switzerland tourism tranquil tree trees valley water whole wood yellow