Introduction to Red Eyebrow Fort: An independent peak in Yanglangou with an altitude of 804 meters. It is surrounded by cliffs and the terrain is dangerous. There is only a dangerous road on the north side of the mountain to reach the peak. The peak is flat and open, and is said to be the fortress of the Red Eyebrow Army. There are still fence nests, flagpole nests, broken walls and tiles on the peak. It is 600 meters away from Dazhaiding, echoing each other from afar.