Kaluga Oblast
Kaluga Oblast is in the central part of the East European Plain. It is between the Central Russian Upland, the Smolensk-Moscow Upland, and the Dnieper-Desna watershed. Kaluga Oblast borders Bryansk Oblast in the southwest, Oryol Oblast in the south, Tula Oblast in the east, Moscow Oblast in the northeast, the federal city of Moscow, and Smolensk Oblast in the northwest.