Hefei has been the provincial capital since 1945 (before it was Lihuang, which is today's Jinzhai) and is a natural center of transportation, being situated to the north of Lake Chao and standing on a low saddle crossing the northeastern extension of the Dabie Mountains, which form the divide between the Huai and Yangtze rivers. From Hefei there is easy water transport via the lake to the Yangtze River opposite Wuhu.