Suppose The Great Wall of China is a series of fortifications made of stone, brick, tamped earth, wood, and other materials, generally built along an east-to-west line across the historical northern borders of China to protect the Chinese states and empires against the raids and invasions of the nomadic groups of the Eurasian Steppe. Several walls were being built from as early as the 7th century BC, with the most famous being started in the 3rd century BC by Qin Shi Huang, the first Emperor of China.
Can we infer that "The Great Wall of China was built in the Southern borders of China."?