 The accuracy of four global digital elevation models, DEMS, was evaluated at five key locations in the European part of Russia. Errors and morphometric parameters were compared between DEMS and more accurate data, 1,10,000 maps, as well as remote sensing data. Slope models SRTM CSIR and AW3D30 were found to be more consistent with the reference model, while ASTRA GDEM V.2 was the most accurate. This article was authored by I.A. Shatkin, K.A. Maltsev, G.F. Ginnitinova, and others.