Pannonian Basin

…Carpathians are found the depressed Pannonian Basin, composed of the Little and the Great Alfolds of Hungary, and also the relatively lower mountain-and-hill zone of Transdanubia, which separates these two plains. Thus defined, the Carpathians cover some 80,000 square miles (200,000 square kilometres).

…the Croatian crescent, are the Pannonian and para-Pannonian plains. To the north of Zagreb, the Zagorje Hills, fragments of the Julian Alps now covered with vines and orchards, separate the Sava and Drava river valleys.