| One of the gates to the great fortress of Jiayuguan. Inside, the path turns several right-angle corners (to slow down invading horses) and has gates that could be lowered to trap invaders. |
A view of the inner buildings of the fortress. |
One of the reasons the wall is so well-preserved is that the clay was dug out of a riverbed (fewer weed seeds), steamed, then dried in the sun to kill weed seeds. Finally it was washed in a salt and alkaline solution to further discourage weeds. |
A view along a restored section of the Wall. I climbed up less than a kilometer of the wall, but my calves were sore for days afterwards! I can't imagine hauling heavy loads of clay up the mountain to build the wall. |