Guankou is located in Changsha city, China at the 28.1586, 113.6271 coordinates. Distance from Guankou to other cities. are listed below, click on the city name to find distance between. Distance from Guankou to Yueyang 145 km, to Hengyang 173 km, to Zhuzhou 59 km. The green marker indicates the location of Guankou.