“…In general, the relief that cause the variety of natural conditions of the route causing the diversity of the GTS is complex. That includes high mountain ranges, plateaus, uplands and lowlands, divided by river valleys [13,19,20,32]. The highest mountains are located in the southern and south-eastern parts of the territory, where the prevailing elevation above the sea level is from 800 to 1500 m. The main elements are elongated in the sublatitudinal or north-eastern direction.…”