The B 247 from Luisenthal via Oberhof and Zella-Mehlis to Suhl, which follows the Ohra to the north, a section along the Lichtenau to the south and finally the lower reaches of the Mühlwasser, together with the good 10 km long L 1028 road that runs parallel to it to the northwest separates this natural sub-division of the Thuringian Forest from the rest.