| | | | | 109°08′20″ | 110°23′00″ 39°39′10″ 39°58′18″ | 109km 35km 2145.4 km | 54 | 3 12 | 2 72 27 | 24 37494 7 | % | | | | | | | | | | | 1907 | | | 1912 | | 1928 | | | 1931 | | 1940 | 1949 | 9 19 1950 3 | | 1953 | | | | | 1940 | 28 | 1944 16 10 | 1949 1950 | 4 18 | 1954 | | 1956 | 3 | 12 1 1958 5 | 1 10 1 1984 | 4 1987 | 10 10 | 1984 1 18 2001 9 28 | | | 600 十二连城 | 916 | | | |