Geographic location is expressed by the geographic bounding box. Geographic bounding box is the space of propagation of a resource. It is defined by means of the westernmost and easternmost geographic longitude and southernmost and northernmost geographic latitude. Geographic bounding box is used to define the smallest area contains all data.
Geographic location: northern - most geographic latitude
Geographic location: southern - most geographic latitude
Geographic location: eastern - most geographic longitude
Geographic location: western - most geographic longitude