Introduction. Evgeny A. Stulov (1902–1940) is a remarkable yet still little-known figure who invested extensive and fruitful efforts in Mongolia and for Mongolia. He came from a large peasant family but grew to receive sound training for that time which included real school courses followed by studies at Moscow University (External Affairs Department, Faculty of Social Science). On graduation, he was added to the reserve list of the People’s Commissariat of Foreign Trade (Administrative and Economic Department) to be further employed as economist (since August 1925) at the Chief Department of Tariffs (same Commissariat) — and soon promoted to Secretary of the Committee for Customs and Tariffs (CDT). Stulov’s expertise and competence were manifested in most diverse ways: he was writing scholarly articles, delivering lectures; as Advisor to the MPR Economic Council had to deal with the troubled situation in Arkhangai Aimag; and was in charge of Mongolia’s zoning. Goals. The study describes E. Stulov’s efforts dealing with Mongolia’s zoning, provides data on his articles and lectures. Materials. The paper investigates documents housed at Russian State Archive of the Economy, examines some published sources and scholarly writings. Results. Despite E. Stulov lived a short life (38 years only), his knowledge, competences, and accomplishments made it possible for him to gain a deep and practical understanding of the country and its citizens. As Advisor to the MPR Economic Council, he promptly delved into the circumstances behind the uprising in Arkhangai Aimag — and along with other researchers was further involved in zoning endeavors. Key outcomes of his work were approved and accepted by the Mongolian government. The scope of his activity also included writing of articles and lecturing. Our analysis attests to that he was well familiar with works authored both by predecessors and contemporaries , i.e. then and there we would face a man of individuality and talent who had accumulated good knowledge of Mongolia and actually done a lot for its future.