Hangu Pass
Hangu Pass or Hanguguan is a pass isolating the upper Yellow River and Wei valleys the support of Chinese human advancement and seat of its long-term capital Xi'an from the fruitful North China Plain. It lies on the south bank
Hangu Pass or Hanguguan is a pass isolating the upper Yellow River and Wei valleys the support of Chinese human advancement and seat of its long-term capital Xi'an from the fruitful North China Plain. It lies on the south bank