The aims of this study were to evaluate grasslands in terms of suitability for beef cattle grazing and produce grassland-suitability and availability maps. The study area is located in eastern Turkey. In order to monitor vegetation cover and chemical composition of grass, 3 sub-plots were fenced to collect grass samples and herbage was measured by hand clipping at ground level within quadrats and then biomass was calculated on a fresh and dry matter basis. Sward height was measured as the height of the top surface of the leaf canopy. LANDSAT satellite data were used to realize geographical correction of the data. The image of the area was produced selecting red (0.45-0.52 µm), near infrared (0.52-0.60 µm) and infrared (0.63-0.69 µm) bands, and reflection histograms and curves were created and interpreted. GIS was used to produce classification maps. Grassland suitability for beef cattle grazing was considered and, as a result, three classes of suitability were determined as highly suitable, moderately suitable and marginally suitable.