waterfall hochfall wassersturz hochfall or wasserfall hochfall in the rhine river valley, mainfeld - canton of grisons

adventure alpine beautiful blue canton canyon canyoning cascade cascades cliff creek ecology environment extreme fall flow flowing foliage forest graubuenden graubünden green grisons high hiking hochfall landscape leaves mainfeld moss mountain mountains natural nature outdoor outdoors rhine river rock scenery scenic speed stone stream summer swiss switzerland tree trekking valley view wanderlust wasserfall wassersturz water waterfall waterfalls white wild wilderness