ESTIMATION OF POTENTIAL STREAM BEDS USING DEM: CASE STUDY KAHRAMANMARAS CITY Muhammed Enes Atik, Şaziye Özge Dönmez, Zaide Duran, Cengizhan İpbüker, Ali Tuğcan Ünlüer Muhammed Enes ATİK Research Assistant; Department of Geomatics Engineering, Istanbul Technical University, 34469-Maslak, Istanbul, Turkey; atikm@itu.edu.tr, Şaziye Özge DÖNMEZ Research Assistant; Department of Geomatics Engineering, Istanbul Technical University, 34469-Maslak, Istanbul, Turkey; donmezsaz@itu.edu.tr, Zaide DURAN Associate Professor (PhD); Department of Geomatics Engineering, Istanbul Technical University, 34469-Maslak, Istanbul, Turkey; duranza@itu.edu.tr, Cengizhan İPBÜKER Professor (PhD); Department of Geomatics Engineering, Istanbul Technical University, 34469-Maslak, Istanbul, Turkey; buker@itu.edu.tr, Ali Tuğcan ÜNLÜER Research Assistant; Department of Geological Engineering, Istanbul Technical University, 34469-Maslak, Istanbul, Turkey; unluera@itu.edu.tr Abstract Cooperation of using Geographic Information System (GIS) and photogrammetric aspects have an influent affect on geographical and geological applications since long. Developing analysis techniques are useful for determining dried stream beds in order to detect possible mineral deposits. In this paper, GIS analysis on the Digital Elevation Model (DEM) data such as calculating height, slope, and aspects is performed in the selcted region, and also satellite image is used for creating 3D model of the site area. Kahramanmaras city is selected as the site area for the analyze. In the result of the study, site area is classified with two different model for estimating higher and lower potential dried stream beds with using GIS analysis. The land cover and land use map results are also combined with the 3D model of the region for geovisualization of potential dried stream beds. In the site area, field work is also done for collecting some sample geological samples. Also, these sample points assisted for the study of 3D model of the potential dried stream beds results. In the conclusion section, the results are discussed for evaluating potential mineral deposits in the region. Usage of these land cover and land use maps are predicted for the decision-making process of geological engineers. Keywords : 3D Modelling, Geographical Information Systems, Digital Elevation Model Proceedings, 7th International Conference on Cartography and GIS, 18-23 June 2018, Sozopol, Bulgaria ISSN: 1314-0604, Eds: Bandrova T., Konečný M. 801