Introduction to K2: The peak is pyramid-shaped, with ice cliffs and steep mountains. The steep slopes are covered with avalanche chute marks. The top of the mountain is an ice slope rising slightly from north to south, with a large area. The north side is like a knife cutting an axe, with an average slope of more than 45 degrees. From the northern base camp to the summit, the vertical height difference reaches 4,700 meters. It is the largest vertical height difference in the world for peaks above 8,000 meters.