Piz Roseg (pronounced as
peetse rawzech) is a mountain of the
Bernina Range 
, overlooking the
Val Roseg 
in the Swiss canton of Graubünden.
There are two summits on its main ridge:
- the south-east and higher summit (3,935 m)
- the north-west summit, known as the Schneekuppe (3,917 m).
There is also a prominent top on the east-north-east ridge, called the Roseg Pitschen (3,867 m) (Italian border).
History
The first ascent of the mountain to the Schneekuppe was by F. T. Bircham with guides Peter Jenny and Alexander Fleury on 31 August 1863. The highest point of the mountain was reached two years later by A. W. Moore and Horace Walker with guide Jakob Anderegg on 28 June 1865. The first guideless ascent was made on 7 August 1882 by Charles Pilkington, his brother Lawrence and Eustace Hulton.
Piz Roseg is separated from the neighbouring
Piz Scerscen 
by the
Porta da Roseg (3,518 m), also called the
Güssfeldtsattel.