北方有座万里长城,灌县有座十里短城。这里的灌县也就是我们现在所说的都江堰古城区。说起都江堰,大家的第一反映无疑是天下幽的青城山和举世闻名的水利工程,这个灌县古城却鲜有人提起。然而因灌县地处汉人居住区与羌人、藏人居住区的交界处,自古以来就是经济、军事的战略要地,因此紧邻灌县城边有个玉垒关,又名镇夷关。 There is a Great Wall in the north, Guan County has a ten-mile short city. Guan County here is what we now call the ancient city of Dujiangyan. Speaking of Dujiangyan, everyone’s first reflection is undoubtedly quiet world Qingchengshan and the world-renowned water conservancy project, the ancient city of Guanxian few people mentioned. However, due to the county is located in the Chinese settlements and Qiang people, Tibetan settlements at the junction, since ancient times is an economic and military strategically, so close to the county town has a Yu barrier, also known as the town of Yi barrier.