The Geographic Information System (GIS) is an extremely effective tool for displaying large amounts of data and creating a real representation of subsurface parameters and information in the form of three-dimensional (3D) scenarios that geotechnical engineers may use to construct foundations and footings. This study dealt with the production of digital geotechnical maps of geotechnical parameters that can be widely used in the initial stages of constructing buildings and foundations. This paper included part of the governorate, which is the city of Baqubah, the center of Diyala Governorate, which is located on the Diyala River, 50 km northeast of the capital, Baghdad, where it was collected and classified. Approximately 228 wells for the entire Diyala Governorate were collected in an Excel sheet and used as data in creating maps. The results showed that GIS is a brilliant tool for depicting digital information and placing it in a geographically specific manner. The system also proved its prowess in guessing values that were not present in laboratory tests.