alpine peak graustock between the engstlensee and trüebensee lakes and in the uri alps mountain massif, engelberg - switzerland

adventure alp alpine alps background beautiful blue canton cliff climb climbing destination engelberg engstlensee environment geology grass graustock green high hiking hill kanton lakes landscape massif mount mountain mountains natural nature nobody obwald obwalden outdoor outdoors panorama peak pile rock rocky scenery scenic schweiz silver sky snow stone stones summer summit sunny swiss switzerland top tourism travel trekking trafrac14 ebensee uri vacation valley view wilderness