《水经注·卷八》
宋武帝西征长安，命令垣苗镇守此城，所以民间又有垣苗城一名。
宋武帝西征长安，令垣苗镇此，故俗又有垣苗城之称。
When Emperor Wu of Song Dynasty conquered Chang'an, he ordered Yuanmiao to guard this city. Therefore this city was also called Yuanmiao City.