Dongting Lake to the east, the city of Yiyang to the south, Wuling and Xuefeng Mountains to the west, and Hubei province to the north. Near the border with Hubei province in Shimen county is Huping Mountain (), the highest peaks in Hunan province with an altitude of . The Xuefeng and Wuling mountains have historically been part of the native habitat of the South China tiger. This species is critically endangered and believed to be extinct in the wild. In recent years, the Chinese government has worked to identify potential sites for the establishment of a tiger reserve for the reintroduction of captive-born tigers into the wild. Hupingshan-Houhe National Natural Reserve Complex in Shimen county was selected as one of several potential sites. Climate It has a monsoon-influenced, four-season humid subtropical climate (Köppen Cfa), with cool, damp winters, and hot, humid summers. Winter begins relatively dry but not sunny and becomes progressively damper and cloudier; spring brings frequent rain and the highest humidity levels of the year. Summer is comparatively sunny, while autumn is somewhat dry. The monthly 24-hour average temperatures ranges from in January to in July, while the annual mean is . The annual precipitation is about . With monthly percent possible sunshine ranging from 22% in February and March to 53% in July, the city receives 1,602 hours of bright sunshine annually. Administrative divisions The municipal executive, legislature and judiciary is in Wuling District, together with the city's Communist Party headquarters and Public security bureau. Wuling sits on the left bank of the Yuan River. Opposite Wuling is the administrative centre for Dingcheng District. Changde prefecture-level city oversees two districts, one county-level city and six counties : Economy Tobacco is the most important industry in Changde. Changde Cigarette Factory (CDCF), now a subsidiary of China Tobacco Hunan Industrial Co., Ltd., is one of six key cigarette companies in China and employs 8,300 workers in Changde . CDCF is by far Changde's largest industrial concern accounting for 4.22 billion (51.2%) of the city's 8.2 billion total industrial value added in 2012. Changde is also an administrative centre and a storage and shipping point for tung oil, grain, cotton, medicinal herbs, and wood. Manufactures include ceramics, machine tools, textiles, leather, and processed foods. Grain, oil, cotton, and other commodities are loaded into medium-sized ships and taken to Yueyang, Changsha, or Hankou (Wuhan, Hubei province) for onward shipment. Timber