Abstract: The review of the materials of the Anabar-Olenek land management expedition of 1934 that have survived to the present time is given, which may be of interest as sources for studying the population of local territories in comparison with the censuses of 1926-1927 and 1939. An attempt is made to show the value of the source in the study of the population of local territories for the reconstruction of the settlement of indigenous people of the North before collectivization and transfer to a sedentary lifestyle.
The study of the materials of the land management expedition was carried out using statistical, comparative-historical, retrospective and cartographic methods, methods of analysis and description. The author examines in detail the characteristics of the population and settlement of the Anabar district, describes in detail how the traditional settlement system was organized and the traditional land use associated with it. The author pays special attention to the form of economic organization of the population – belekh.
It is established that the grouping of households in belek was a forced step of survival and joint management dictated by natural and economic conditions.
The main conclusions of the study are the reconstruction of the settlement of the population of the area in 1934. A special contribution of the author in the study of the topic is the comparison of the data of the report of 1934 with the materials of the population censuses of 1926-1927 and 1939.
The information contained in the reports of the Anabar-Olenek land management expedition fills in the gaps in the characteristics of the population of the Anabar district and is introduced into scientific circulation as a valuable source for studying the history of the population of the North.

Abstract: The article is devoted to the study of the development of the transport network of one of the largest regions of Russia on the example of mapping land routes in different historical periods. The relevance of the research topic is due to the lack of research, among the available historical and geographical works related to the study of the history of mapping the transport network of Yakutia. The purpose of this work is to study the history of the development of the transport network of Yakutia from the XVII to the beginning of the XXI centuries based on the analysis of various cartographic sources. To achieve this goal, the domestic experience of transport mapping was investigated; on the basis of identified published and unpublished sources, multi-time maps showing land routes of communication were selected and analyzed; on the basis of the analysis, the main stages of mapping land transport in Yakutia were identified. The study was conducted using a systematic approach, historical-comparative, cartographic and geoinformation methods. Due to the fact that this research is at the junction of a number of sciences, the work is based on an integrated approach. As a results of the study, the authors identified the stages in the history of mapping the transport network of Yakutia: the first stage (XVIII – late XIX centuries); the second stage (the first half of the twentieth century); the third stage (mid–twentieth century - 1990s); the fourth stage (post–Soviet period - to the present). Currently, a new information environment for the development of historical and geographical sciences is being created. GIS technologies enable access to historical maps, as well as the emergence of new ways to extract historical information from them. There are opportunities to detect previously hidden information, extract it and process it. The practical significance of the presented work is connected with the possibility of using its results to determine the directions of development and optimization of territorial aspects of the functioning of transport networks of the Republic of Sakha (Yakutia).

Abstract: The subject of this research is displacement of the indigenous small-numbered peoples in the constituent entities of the Russian Federation neighboring with Yakutia. The object is the indigenous small-numbered peoples of the North residing in Krasnoyarsk Krai, Irkutsk Oblast, Zabaykalsky Krai, Amur Oblast, Khabarovsk Krai, Magadan Oblast, and Chukotka Autonomous Okrug. These constituent entities of the Russian Federation have contiguous territories with the Sakha Republic. The author examines the displacement and size of the indigenous population of the regions of the Russian Federation neighboring with Yakutia. Special attention is given to clarification of the places of traditional dwelling of the indigenous small-numbered peoples in the aforementioned regions of the Russian Federation. It is established that the following ethnic groups reside in the territory contiguous to Yakutia: Dolgans, Evenks, Evens, Yukaghirs and Chukchi. The areas of residence of the listed ethnic groups border with the areas of settlement of the corresponding indigenous small-numbered peoples of the North in the territory of the Sakha Republic (Yakutia). The author’s special contribution lies in the analysis of displacement and size of the indigenous population in the regions of the Russian Federation neighboring with Yakutia on the local level. The novelty of consists in the territorial analysis of the places of traditional dwelling of the indigenous small-numbered peoples of the North.

Abstract: The subject of the study is the structure and content of the GIS developed by the author "Settlements subject to flooding and flooding on the territory of the Republic of Sakha (Yakutia)". The object of the study is 128 flooded settlements included in the List of established flood zones on the territory of the Republic of Sakha (Yakutia), their analytical processing and cartographic interpretation. The sources for the creation of GIS were published sources, statistical data, data of departmental organizations, passports of socio-economic development of municipalities and archival documents.
The author conducted various types of geoinformation analysis (analysis of the geography of settlements by river basins, the dynamics of the number of floods of settlements (since 1929-2017), the density of flooded settlements) in ArcGIS. It was revealed that most of the flooded and flooded settlements are located in the middle reaches of the Lena River and along its major tributaries – the Aldan, Amga, Olekma; in the northeastern part of Yakutia, flooded settlements are located mainly in the upper reaches of the Yana, Indigirka, Alazeya rivers, as well as in the lower and middle reaches of the river.Kolyma and their tributaries. It was found that in some localities the number of floods from 1930 to 2017 ranged from 30 to 40. It is shown that the highest density of settlements subject to flooding and flooding is observed in Central Yakutia in the places of the greatest concentration of the population of the republic.
The developed GIS of settlements exposed to flooding can be used to make recommendations to ensure the protection of settlements from flooding and flooding.

Abstract: The subject of the study is the location and population of the Anabar ulus in dynamics. The purpose of the study is to study the dynamics of the number and settlement of the population of the area under consideration using GIS technologies. The author conducted a study based on archival, statistical and cartographic sources. Verification of the reconstruction of the settlement network was carried out during field research in Anabarsky ulus in September 2020. The results of the work are presented by thematic layers in the GIS developed by the author, reflecting the dynamics of settlement from 1926 to 2020. The attribute tables contain data on the population, information about the location of settlements. В  The novelty of the study consists in the reconstruction of the settlement of the population of the Anabar district from 1926-2020 on the basis of multi-time maps and census data. It is established that as a result of the policy of transferring the nomadic population to a sedentary lifestyle and the enlargement of farms carried out during the Soviet period, there was a decrease in the number of settlements, while an increase in the population of settlements is traced. The compiled maps demonstrate a decrease in the area of population settlement in the territory of the studied area. A number of research sources are being introduced into scientific circulation for the first time and are used in the analysis of the settlement and population of the studied area.