Answer:
Kursk oblast?
Step-by-step explanation:
I can be wrong but yea.
Zheleznogorsk, city, Kursk oblast (region), western Russia. It is located 80 miles (130 km) northwest of Kursk city and was founded in 1958 in connection with the development of the KMA (Kursk Magnetic Anomaly), one of the Soviet Union's largest iron-ore-mining basins.