rocky mountain peaks piz sarsura pitschen (3132 m), piz sarsura (3176 m) and grippa naira (3130 m)

rocky mountain peaks piz sarsura pitschen 3132 3176 grippa naira 3130 albula alps alpine valley val grialetsch zernez canton grisons switzerland schweiz adventure alp background beautiful blue cliff climb climbing destination environment geology grass green high hiking hill landscape mount mountains natural nature outdoor outdoors panorama peak pile rock scenery scenic silver sky snow stone stones summer summit sunny swiss top tourism travel trekking vacation view wilderness