From Bonaduz the road comes to Rhäzuns (648 m/2,126ft). To the right is the village, with the Romanesque church of SS Peter and Paul and another church of 1702. To the left, on a steep crag above the Hinterrhein, stands the imposing Rhäzuns Castle, the oldest parts of which date from the 13th C., and which commands the entrance to the Domleschg
At the end of the village, on left, is the lower station of a cableway, 2,100 m/6,890ft long, to Feldis. The road follows the railroad on the wooded hillside above the Hinterrhein, whose broad stony bed is enclosed between massive levees. On the opposite bank is a tower of the ruined castle of Nieder- Juvalta. 2km/1mi beyond this, on the right, is the Rhäzuns mineral spring ("Rhätisana" table water; visitors can tour bottling plant). In another 2km/ 1mi, just before the Rothenbrunnen railroad station (625 m/2,051ft; to left), the valley opens out and the road forks. The valley floor and the gentle lower slopes on the east side are known as the Domleschg, the steeper west slopes as the Heinzenberg. On both sides are cornfields reaching high up on the hillsides. The main road to Thusis skirts the left bank of the river under the Heinzenberg; the very attractive side road to the left passes through the numerous villages in the Domleschg and rejoins the main road at Thusis. The castles built on projecting spurs of rock were almost completely destroyed at the end of the 15th C.