 The Dinaric Alps in Croatia encompass the regions of Gorski Kotar and Lika in the immediate hinterland of the Croatian Littoral, as well as considerable parts of Dalmatia.Their northeastern edge runs from Žumberak to the Banovina region, along the Sava River, and their westernmost landforms are the Ćićarija and the Učka mountains in Istria to the west of the Croatian Littoral region.Karst topography makes up about half of Croatia and is especially prominent in the Dinaric Alps and the Croatian Littoral.