Dingjun Mountain is a branch of Bashan Mountain, because of the three countries' historical sites and widely known, Wuhou Tomb is located at the foot of Dingjun Mountain. It is also the ancient battlefield of Wei and Wei's two countries in the Three Kingdoms Period. The three Kingdoms period of Dingjun Mountain is also the place to enter the Sichuan. Although the mountain is not dangerous, it is also a place where the soldiers must compete. Zhuge Liang has used soldiers here many times, so Er is famous in the world.