The article considers the use of GNS technologies for analyzing the conditions of the Paleolithic human habitat on the example of the territory along the route of the projected gas pipeline within Gorny Altai. GNS modeling of paleoland environment conditions is based on the understanding of the geological and morphological framework of the paleolandscape. The SRTM digital terrain model and 1:200000 scale geological maps were used. The main factors controlling the localization of parking sites were the presence of flat, flat areas suitable for settlement, proximity to sources of stone raw materials, illumination and water availability of the territory. Verification of well-known Paleolithic sites has shown the adequacy of the geoinformation model and the possibility of using it to optimize the search for new sites. Keywords: Paleolithic, paleo-environment, Gorny Altai, STS, digital relief models. Introduction Geoinformation technologies are quite actively used in archaeological research to solve problems related to the analysis of patterns of spatial distribution of archaeological sites depending on the conditions of the paleoenvironment. One of the pioneer GIS projects for Siberia included the creation of a geodata bank (with Internet access) for radiocarbon-dated Paleolithic monuments and sites of remains of large mammals (in particular mammoths). GIS analysis of the Paleolithic human ecumene and the range of large mammals at different chronological intervals (Kuzmin et al., 2004; Orlova, Kuzmin, and Zolnikov, 2000), in particular, allowed us to substantiate the conclusion about the absence of the Mansi Lake-sea in the south of the West Siberian Plain during the period of 23-11 thousand years AGO. For a number of years, the IAEET SB RAS and the GIS Center of the IGM SB RAS have been conducting joint research aimed at elucidating the regularities of the location of archaeological sites in Western Siberia to various paleogeographic settings for certain chronostratigr ... Read more