Nahrawan to Sawa (orange); Sawa to Simnan (green); Simnan to Danaghan (blue); Danaghan to Sarakhs (yellow); Sarakhs to Marw (red); Marw to Bukhara (purple); Bukhara to Khwarazn (brown); Khwarazn to Jurjaniya (black); Jurjaniya to Bulghar (grey)