Answered by Mr.King
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Feb. 18, 2009 02:39
Hi, different sections were made from different materials, in mountains, the wall was made of stones and bricks, while in desert and grass land where the stones and bricks are not easy to get, the wall was made of sand, wood or local plants such as weeds. You can see https://www.travelchinaguide.com/china_great_wall/construction/material.htm for further explanations.