Vasilsursk (Russian: Васильсу́рск) is an urban locality (a work settlement) in Vorotynsky District of Nizhny Novgorod Oblast, Russia, located on the Sura River, not far from its fall into the Volga.

History

A Kuruk Mari (a tribe of Mari people) wooden fortress named Tsepel used to stand where Vasilsursk is now located. Russians captured it after bloody fight in 1523 from Kuruk Maris and established on its site a small settlement. The fort here was used as an advanced base during the Russo-Kazan Wars.

Climate

Vasilsursk has a humid continental climate (Köppen climate classification Dfb) with long cold winters and warm, often hot dry summers. The warmest month is July with daily mean temperature near +20 °C (68 °F), the coldest month is January −12 °C (10 °F).

Population

Historical population
Year	1989	2002	2010
Pop.	1,871	1,329	1,068
±%	—	−29.0%	−19.6%
Source: 1,068 (2010 Russian census); 1,329 (2002 Census); 1,871 (1989 Soviet census).

Transportation

In warmer months, a ferry operates between Vasilsursk and the settlement of Lysaya Gora. During winter, passengers are transported by amphibious boats Khivus-10.

Sura Ionospheric Heating Facility

The Sura Ionospheric Heating Facility, an ionospheric research facility, is located near Vasilsursk.