The Soil and Terrain database for Senegal and The Gambia primary data (version 1.0), at scale 1:1 million (SOTER_Senegal_Gambia), was compiled of enhanced soil information within the framework of the FAO's program Land Degradation Assessment in Drylands (LADA). Primary soil and terrain data for Senegal were obtained through the Institut National de Pédologie Dakar; the digital soil map from the Centre de Suivi Ecologique. Adjustments made in the SOTER units were based on the SRTM-DEM derived data interpretations.

SOTER forms a part of the ongoing activities of ISRIC, FAO and UNEP to update the world's baseline information on natural resources.The project involved collaboration with national soil institutes from the countries in the region as well as individual experts.