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The mapping and visualization of topographic setting is paramount for the understanding and management of the physical environment. Based on this, sophisticated method that produces accurate result must be adopted to ensure that the right decision is made during planning. GIS technique has proved itself to be a force for sustainable development that is why researchers worldwide frequently apply its procedures in their investigations. The application of GIS in landscape mapping and visualization has increased the confidence ascribed to contemporary cartographic output. However, the primary objective of this paper is to demonstrate how GIS method can be used to simulate topographical data by applying various cartographic techniques in Edo State. DEM-based topographic data of the study region was entered into various GIS softwares and algorithms for manipulation and extraction of terrain features. Progressively, vital topographic features were automatically extracted and generated, these were used to build a GIS-assisted topographical database consisting of such physical features as the stream network of the region, stream catchment, contour and spot height, slope and relief direction etc. From this database, suspicious landscape structure was identified in the region. These digital derivatives are essential for the understanding of the region’s landscape for the purpose of further investigation, planning and policy making.

Mapping and Geovisualizing Topographical Data Using Geographic Information System (GIS)