Piz Terza at sunrise, in autumn, Swiss National Park, Engadin, Graubunden canton, Switzerland, Europe

autumn beauty beauty in nature blue sky clear sky color image countryside day engadin environment europe forest graubunden canton height horizontal landscape majestic mountain mountain range nature nobody outdoors photography piz terza remote rugged rural scenic view serenity sunrise sunset swiss national park switzerland tranquil scene travel travel destinations tree valley central europe central european cloudless color colour dawn daybreak daytime european fall magnificent natural outside peak scenics serene sky sundown swiss tough tranquility