In the XVII-XX centuries, dozens and hundreds of new names appeared on geographical maps associated with the names of Russian travelers. Russian navigators, explorers and naturalists have discovered various natural objects in the Arctic Ocean, Siberia and the Far East, Central and Central Asia: islands and peninsulas, bays and straits, rivers and lakes, mountain peaks and ridges. The book tells about those researchers whose names are rarely remembered, and many of them are undeservedly forgotten or almost forgotten. However, the activities of these pioneers were aimed at the benefit of the country and contributed to the development of domestic and world science.