A spatial database of the location of the world's administrative areas (or administrative boundaries) for use in GIS and similar software. Includes countries and lower level subdivisions such as provinces, departments, bibhag, bundeslander, daerah istimewa, fivondronana, krong, landsvæðun, opština, sous-préfectures, counties, and thana. GADM describes where these administrative areas are (the "spatial features"), and for each area it provides some attributes, such as the name and variant names.
地址：http://gadm.org/