ItzItz Itz The Itz is a river of Thuringia and Bavaria, Germany. The Itz is long and a right tributary of the Main. The Itz begins in Sachsenbrunn (Stelzen), Thuringia and flows southward through Bachfeld and Schalkau. It crosses into Bavaria and feeds the Froschgrundsee reservoir. It continues through Dörfles-Esbach, Coburg, and Großheirath, then is joined by the Rodach north of Itzgrund. It continues southward to Rattelsdorf and Baunach, where it joins the Main. The Itz flooded Coburg in early 2003. Itz The Itz is a river of Thuringia and Bavaria, Germany. The Itz is long and a right tributary