The Republic of Mordovia is situated in the centre of the European part of Russia, in the basin of the Volga, in the junction of the most important roads from Centre to Ural, Siberia, Kazakhstan and Middle Asia. It borders on Nizhegorodskaya region in the north, on Ulyanovskaya in the east, on Penzenskaya in the south, Ryazanskaya in the west and Chuvashiya in the north-east.
Area of the Republic - 26.2 thousand sq. km. Length from west to east is 280 km, from north to south is 55 - 140 km.
In the Republic there are 114 big and small rivers, about 500 lakes.
There are not big supplies of minerals, except for building materials. There were found more than 10 types of minerals: phosphorus, mineral dyes and others. Reserves of building materials are of great importance. Choice of clay is very diverse. Supplies of peat have economic meaning. Reserves of mineral water have been opened.