These raions were Ostrovets, Oshmyany, Volozhin, Ilya, Iwye, Krivichi, Kurenets (Its center was relocated in Vileyka and renamed as Vileyka in 1946), Molodechno, Miadzieł, Postavy, Radashkovichy, Smorgon, Svir and Yuratishki.
In Nevel, south of Novosokolniki, it splits into two railway lines, both running southeast into Belarus: One line to Vitebsk, and another one to Grodno via Polotsk and Molodechno.
One more railway connects Velikiye Luki to Nevel, where it splits into two railway lines, both running southeast into Belarus: One line to Vitebsk, and another one to Grodno via Polotsk and Molodechno.