History of Science and Engineering Annotation << Back Academician V.A. Obruchev's Contribution to the study of the Yakut Mineral Resources Burnasheva N.I., Kovlekov I.I. This article is dedicated to the outstanding contribution of Academician V.A. Obruchev to the development of modern geological science and mining. The article presents the results of a study of the academician's scientific research, starting from the initial period of his professional career. In 1890, he arrived in the Olekminsko-Vitimsky district of the Yakutsk region as a staff geologist of the Eastern Siberia Mining Administration. From that time on and throughout his entire scientifi c career, V.A. Obruchev's research topics steadily expanded, gradually encompassing solutions to fundamental problems of geology from northeast Asia and Siberia to questions of the origin and formation of continents. During this period of his pioneer study of the geology of Yakutia, the foundations of his research were laid in the genesis of gold-bearing ores and the sources of placer gold deposits. He explored the origins and distribution of valuable minerals, and provided a theoretical framework for the geology of permafrost, orogeny, and neotectonics. The article describes the great life of a true geologist, V.A. Obruchev's life was filled with daily meticulous research, expedition work, and scientific endeavors, during which he collected and analyzed vast amounts of fi eld data. His geological explorations of the Asian continent earned him well-deserved international glory during his lifetime. His contributions to global geological science, including stratigraphy, tectonics, and neotectonics, as well as the theory of ore deposits, lithology, geomorphology, and the study of permafrost, have made a significant impact on the field of geology. Keywords: V.A. Obruchev, geology, mining, Siberia, Yakutia, gold-bearing provinces, placer gold deposit, mineral deposit, mineral resources. DOI: 10.25791/intstg.3.2026.1609 Pp. 41-50.