The mountains of Bhutan are some of the most prominent natural geographic features of the kingdom. Located on the southern end of the Eastern Himalaya, Bhutan has one of the most rugged mountain terrains in the world, whose elevations range from to more than above sea level, in some cases within distances of less than of each other. Bhutan's highest peak, at above sea level, is north-central Gangkhar Puensum, close to the border with China; the third highest peak, Jomolhari, overlooking the Chumbi Valley in the west, is above sea level; nineteen other peaks exceed . Weather is extreme in the mountains: the high peaks have perpetual snow, and the lesser mountains and hewn gorges have high winds all year round, making them barren brown wind tunnels in summer, and frozen wastelands in winter. The blizzards generated in the north each winter often drift southward into the central highlands.