Southern Carpathians
The Bucegi Mountains rise above the northern edge of Wallachia, their high plateau enclosed by steep cliffs and deeply cut valleys. Two branches of the massif form a horseshoe around the upper Ialomița, while the Prahova valley runs along its eastern side. Forest covers the lower slopes and gives way to exposed pasture and rock on the plateau. The surrounding valleys and the Bran corridor offer routes between Wallachia and Transylvania around the most formidable heights.