1. A GPS positioning system, comprising: a fixed station; and a mobile station, wherein (a) said mobile station includes: positional positioning means; imaging means; direction detecting means; and arithmetic processing means, (b) said positional positioning means is GPS positional positioning means that measures positional coordinates by receiving radio wave from a satellite, (c) said imaging means is imaging means arranged in a predetermined position for said GPS positional positioning means, (d) said direction detecting means is direction detecting means that detects a photographing direction during photographing by said imaging means, and (e) said arithmetic processing means is arithmetic processing means that forms landscape data in which imaging data that is an output from said imaging means is associated with orientation data that is an output from said direction detecting means.