 It is located in the south-western part of Syrmia—the latter being divided by Croatia and Serbia—and the southeastern part of Slavonia macroregion of Croatia, around Spačva river and river Studva.The region's 40.000 hectares of oak (Quercus robur) forests makes Spačva basin one of the largest continuous lowland oak forests in Europe.In addition, the region forms an organic continuum with the Bosutska šuma () literally Bosut Forest in Vojvodina in Serbia.