The “Three Sisters” is the popular name given to three distinctive ridges on the south-side of Glen Coe in the Scottish Highlands. These ridges form part of the larger mountain massif of Bidean nam Bian.

There is a historic route — often referred to as the “old military road” — that runs through parts of Glen Coe and offers excellent views of the Three Sisters. The “old military road” refers to the road built in the 18th century for troop movements in the Highlands.