There is a touching legend in Guokui Mountain. Genghis Khan, the great ancestor of the Yuan Dynasty, passed here in a battle. At this time, the sun has set in the western hills. Genghis Khan ordered his troops to camp on the spot, so the soldiers began to dig a stove on the grass and make a fire. The news that Khan passed by here spread all over the grassland like a gust of wind, and all the herdsmen nearby met at dawn to visit Khan. However, when they arrived at the camp in the morning fog, there was no one here, only this mountain shaped like a pot helmet and several surrounding hills. The herdsmen said that this must be made of the iron pot that Khan used.