Haha, finally you found a right source of info!
Yes, the farmland is taken from top the
ruins of fortress in
Taxkorgan aka Tushkurgen; the principal town and seat of
Tashkurgan Tajik Autonomous County, Xinjiang, China.
However, the link of photos u found is mainly taken around the foot of
Mt Mustagh and the
Karakul Lake; along the
Karakorum Highway; before reaching Taxkorgan.
Taxkorgan is a small, harmony and also the west-most town of China. Different ethnic groups can be seen everywhere in town due to the multi-neighbour border.
My Karakoram trail (and the other part of Xinjiang) proved to be one of the most unforgettable travel experience I ever had. As it is not appropriate to flood this thread with my own photos, I will take my sharing in another thread.
Now, ZerocoolAstra; your turn!!!