Creating historical Internet resources, databases and informational systems, which are available to a wide user community in on-line mode, is one of the relevant directions of modern historical research. The use of spatial analysis to study the social topography of Siberian cities at the turn of the XIX - XX centuries based on the geographic information system created on the NextGISWeb platform is especially relevant due to the contemplation of creating an information system, containing a various body of data, which are presented as an open user resource with the use of a Web-GIS platform and availabled to a wide circle of researchers. The main source of this study are one of the most complete and representative collections of census forms of the Tobolsk Governorate cities, kept in the State Archives of Tobolsk city, the Tyumen Region (GATO). The types and structure of the census forms formed the basis of the created database, which has an analogous structure with the census forms. Working with maps and city plans, which act as sources for creating a base map and include not only digitizing the source map, but also attracting additional materials containing a description of the infrastructure and urban areas, which involves a broad analytical effort, which is not transfer of information from historical maps to the digital environment, but reconstruction of urban space. The integrated approach and the use of all possible sources allow to achieve the maximum possible effect of the reconstructed space of the urban environment.
HISTORICAL ELECTRONIC RESOURCES FOR STUDYING THE SOCIAL TOPOGRAPHY OF SIBERIAN CITIES AT THE END OF XIX — THE BEGINNINGS XX CENTURIES (SPECIAL ASPECTS OF THE CREATION AND THE USE)