It is fully operated by teenagers. One of many children's railways that existed in the USSR and continued functioning after its breakup in post-Soviet states, it was opened on July 9, 1955. There was a 3-year program to train future railway personnel. In 1971 the railway was named after railman Konstantin Zaslonov, a Hero of the Soviet Union who had commanded a partisan brigade.
The railway line counts 3 stations (listed from north to south): Zaslonovo, Pionerskaya (or Pionerskaja) and Sosnovy Bor (or Sosnovyj Bor); and a pair of rail loops after the end stops. Zaslonovo is located between the Metro stations Park Chelyuskintsev and Moskovskaya, both part of Moskovskaya Line.