The article is devoted to the famous scientist-surveyor, mining engineer and cartographer, a captain of the geodetic detachment, Kliment Aleksandrovich Zvonarev (1902–1986). K. A. Zvonarev went from a student of the Leningrad Mining Institute (graduated in 1928) to Doctor of Technology (1953) and professor (1954). From 1929 to 1957 he taught at the Leningrad Mining Institute (since 1935 – associate professor, since 1954 – professor), in the period of 1957–1978 he headed the Department of Cartography in Leningrad State University. Participant of the Great Patriotic War of 1941–1945. He served in the engineering units of the Leningrad, Volkhov and Karelian fronts as the topographic department head’s assistant, military engineer and engineer-captain of the geodetic service. He was awarded the Order of the Red Star (1942), Badge of Honor (1948), medals For the Defense of Leningrad (1943), For the Victory over Germany (1946), For Labor Valor (1950), In Memory of the 250th Anniversary of Leningrad (1957), 20 years of Victory in the Great Patriotic War (1966). The authors provide information on working, the main scientific achievements and recollections by Kliment Alexandrovich about his participation in battles.