It is a historical region in central Ukraine along the Dnipro River. The name 'Zaporizhzhia' is related to the fact that before the reservoir construction in this part of the river, ridges of stone (rapids, or 'porohy' in Ukrainian) came to the surface. It is an industrial centre that includes the large cities of Dnipro and Zaporizhzhia. Industrial tourism is developing here around the quarries of the Kryvyi Rih iron ore basin (the leading mining hub of the entire country). In the national reserve on the island of Khortytsia, the items and customs of the Ukrainian Kozaks are preserved, and their homeland, Zaporizhian Sich, is recreated. The local tradition of Petrykivka painting is included in the UNESCO list of the intangible cultural heritage of humanity.