The map of geosystems of the Crimean Mountains was synthesized with a digital elevation model (DEM), SRTM and thematic maps and built by using geographic information systems (GIS). The main role in the process of separation of geosystems plays semiautomatic and automatic interpretation of the DEM, which provides greater detail and differentiation of the selected path. Special methods have been isolated valleys and terraced areas. Keywords: Mountain Crimea, geosystem, digital elevation model, methodology.