Central Russian Upland

The upland stretches across a number of regions in Ukraine and the European portion of the Russian Federation.

The Kostroma river and the city of the same name suggest that the area in Central Russia is an important reference point for the original home of the Slavic tribes.

The Voronezh Massif is part of the East European Craton and southwesterly descends towards the Dnieper-Donets Through (Depression) which along with Prypiat Through forms the Prypiat-Dniper-Donets aulacogen.

Most of the Voronezh Massif is covered with thin layers of sedimentary deposits of the Devonian, Jurassic, Cretaceous, and Paleogene periods.

In the southeast along the Don River between the cities of Boguchar and Pavlovsk (both in Voronezh Oblast) the crystalline layers come to the surface.