SRDP provided field survey services in the eastern and western Mindanao, with an approximate area of 42,000 sq km. This was done prepare necessary planimetric details and annotation data on the field for the plotting and editing of 1:50,000 topographic maps. The survey consists of the following:

• Field identification
• Field completion
• Digitizing of annotations

Assistant Engineers were also assigned to Study Team to provide assistance in the preparation of maps and technical documents, as well as in the analysis of various data collected for the project.