She is the largest country in Asia in area as well as one of the largest in the world. China measures 5200 kilometers from the confluence of the Heilongjiang River and the Wusuli River in the east to the Pamirs in Xinjiang in the west, crossing more than 60 degrees in longitude and with a time difference of over 4 hours between the two points, and 5500 kilometers from the Zengmu Reef of the Nansha Islands in the south, to the central line of the Heilongjiang River north of the Mohe River in the north, overlapping 50 degrees in latitude.
China is the country in the world with the widest coverage in both longitude and latitude.
China has a land border of about 22,800 kilometers in length, and the continental coastline of 18,000 kilometers. She has over 5000 islands on her vast territorial waters, among which Taiwan Island with an area of 36,000 square kilometers is the largest one, and the Hainan Island encompassing 34,000 square kilometers second only to it. They both are provinces of China. Her land sloping gradually from west to east can be roughly divided into four areas with gradual decreases in elevation. Mount Qomolangma, the highest peak in the world, is at 8846.27 meters above sea level.