<P> The Great Wall stretches from Dandong in the east to Lop Lake in the west , along an arc that roughly delineates the southern edge of Inner Mongolia . A comprehensive archaeological survey , using advanced technologies , has concluded that the Ming walls measure 8,850 km ( 5,500 mi ) . This is made up of 6,259 km ( 3,889 mi ) sections of actual wall , 359 km ( 223 mi ) of trenches and 2,232 km ( 1,387 mi ) of natural defensive barriers such as hills and rivers . Another archaeological survey found that the entire wall with all of its branches measures out to be 21,196 km ( 13,171 mi ) . Today , the Great Wall is generally recognized as one of the most impressive architectural feats in history . </P>
how many kilometers of great wall of china
the entire wall with all of its branches measures out to be 21,196 km