1/1000 scale map production of the city Yalova. The inhabited area covered by the project was 655,5 hectares while the empty land covered was 394,5 hectares. 58 triangulation points (concrete pillar blocks with bronze signboards) were established and surveyed by GPS method. 86 sheets (1:1000, 1:2000,1:500) were produced at the end of the project.