Before the merger, Pratval had a total area of 0.8 km² (0.31 sq mi).
It is the smallest municipality in Graubünden.
Of this area, 55% is used for agricultural purposes, while 26.3% is forested.
Of the rest of the land, 17.5% is settled (buildings or roads) and the remainder (1.3%) is non-productive (rivers, glaciers or mountains).

The former municipality is located in the Domleschg sub-district, of the Hinterrhein district.
It consists of the settlements of Gross- and Kleinrietberg, Rietbach, Mühle and Hof.
All five settlements are located on a plateau east of the Hinterrhine river.
Before the merger, Pratval had a total area of 0.8 km² (0.31 sq mi). It is the smallest municipality in Graubünden. Of this area, 55% is used for agricultural purposes, while 26.3% is forested. Of the rest of the land, 17.5% is settled (buildings or roads) and the remainder (1.3%) is non-productive (rivers, glaciers or mountains).
The former municipality is located in the Domleschg sub-district, of the Hinterrhein district. It consists of the settlements of Gross- and Kleinrietberg, Rietbach, Mühle and Hof. All five settlements are located on a plateau east of the Hinterrhine river.
Pratval