The training manual is designed for students and teachers of schools, secondary special and higher educational institutions, where teaching is carried out on the regional component .. The publication presents modern views on the history of the settlement of the Eastern Transbaikalia, its nature, demography, political structure, economy. In this tutorial you will get acquainted with the history of settlement, research and economic development of the Chita region and the Aginsky Buryat Autonomous Okrug, their nature, population, economy . You will learn about the riches of the interior of our region, about its landscapes, environmental management, environmental conditions and nature conservation. Despite the seemingly good knowledge of the Eastern Transbaikalia, much remains unknown or insufficiently studied. Even residents of the region and the Autonomous Okrug can still make their discovery. So, many mysteries conceal a very interesting and complex toponymy .. Eastern Transbaikalia (Annex 1). Studying the geography of our region will help you better understand the complex problems and prospects of its development, and also possibly help you effectively promote the conservation and rational use of its natural resources.