Middle Ages, Serbia, border, Oronym, relief, mountain, hill, peak, ridge, rock, cape, slope, head, section, shall, field
Relief is one of the most important and influential elements of the environment. All forms of the Earth's surface, i.e. its roughness and plane surfaces predetermine the type and forms of borders in a space. Mountains, hills, and mountain peaks, head, ridges, cliffs, rocks, steep slopes, headlands, valleys and pastures have a border role. Oronyms are clear, precise, easily visible, immobile, permanent borders, which exist under the same or similar name since the Middle Ages to the present day.