The aim of this study is to compare open-source DEM data with ground data in order to assess the accuracy and identify their possibility of usage for agricultural activities. The accuracy assessment was checked through ground data taken from 2100 m sq. agricultural field that is being used for wheat and corn production within a year. An experimental area that is almost smooth, located in of Shovot district of Khorezm region, Uzbekistan. Minimum, maximum, and mean errors and Root Mean Square Error values of each DEM data were calculated, and found out that SRTM data is more applicable than the others and. It showed 0.37, -0.12 and 0.14 errors respectively, and 0.13-meter RMSR value. However, field geomorphology
better described with Google Earth data among the others.