 It occurs in Russia and China, to the east to Chabarowsk in the Amur region, west to the Chingan mountains, and north to Manchuria (Northeastern China).The common name, Russian rat snake, is misleading as only a small portion of the geographic range of "E. schrenckii" is in Russia.It has been reported from Chinese provinces of Jilin, Heilongjian, and the Quingyuan area of Liaoning.