The southern end of the Duku Highway is also known as the Krzyszka Grand Canyon. Uyghur is a red cliff, formed by reddish-brown rocks after hundreds of millions of years of wind and rain. The reddish-brown mountain groups are directly inserted into the sky, and under the sun, like a cluster of burning flames. Its charm lies not only in its majesty, its precipitousness, but in its deepness, its tranquility and its mystery.