Yongjing is located in western Gansu province along the Yellow River, north of the Liujiaxia Reservoir, or Bingling Lake. Yongjing County's area covers more than 1,863km². It is mountainous and hilly with elevations between 1560–2851 m above sea-level and is located between 35°47'-36°12'N and 102°53'-103°39'E.