The county is located in the remote southeastern corner of the prefecture, on the border with Guangxi. Two local sites, Xiaoqikong (小七孔) and Dongduo (洞多), notable for their spectacular karst formations, form part of the multi-site South China KarstUNESCOWorld Heritage Site inscribed in 2007, which is an area about 550,000 km2 in extent.[1]
The Qiannan Libo Airport, opened in late 2007, has capacity to receive planes of the Boeing 737 class, and to handle up to 220,000 passengers annually.[4] However, the $57-million facility is rather underutilized so far.[4] According to the Civil Aviation Administration of China (CAAC) statistics, 151 paying passengers flew into or out of the airport in 2009 - which was a 98% drop compared to the previous year (7886 passengers), and placed the airport the last in list of the nation's 166 airports by traffic volume.[5] Currently four airlines use the airport.
Flora
The karst environments in Libo County consist of the following types of forests.[1]