Near Tamins-Reichenau the Anterior Rhine and the Posterior Rhine join and form the Rhine. The river makes a distinctive turn to the north near Chur. This section is nearly 86 km long, and descends from a height of 599 m to 396 m. It flows through a wide glacial alpine valley known as the Rhine Valley (German: Rheintal). Near Sargans a natural dam, only a few metres high, prevents it from flowing into the open Seeztal valley and then through Lake Walen and Lake Zurich into the river Aare. The Alpine Rhine begins in the most western part of the Swiss canton of Graubunden, and later forms the border between Switzerland to the West and Liechtenstein and later Austria to the East.
Near Chur, which direction does the Rhine turn?  How long is the section of the Rhine near Chur? What is the other country the Rhine separates Switzerland to?  Where does the Rhine make a distinctive turn to the north?  The Rhine forms the border between Austria and what other country? 
north 86 km Austria Chur Switzerland
The river makes a distinctive turn to the north near Chur. This section is nearly 86 km long, and descends from a height of 599 m to 396 m. It flows through a wide glacial alpine valley known as the Rhine Valley (German: Rheintal). The Alpine Rhine begins in the most western part of the Swiss canton of Graubunden, and later forms the border between Switzerland to the West and Liechtenstein and later Austria to the East. The river makes a distinctive turn to the north near Chur. The Alpine Rhine begins in the most western part of the Swiss canton of Graubunden, and later forms the border between Switzerland to the West and Liechtenstein and later Austria to the East.
Rhine