The Blue Mountains is a town in Grey County, southwestern Ontario, Canada, located where the Beaver River flows into Nottawasaga Bay.

In the summer there is hiking, downhill/cross-country biking, an extravagant mini putt,[2] the Ridge Runner[3] and events such as Met Con Blue.

[4] If physical activities are not what you are looking for, The Village at Blue Mountain[5] has a plethora of boutiques, coffee shops, restaurants, hotels and chalets, as well as golf courses within walking distance.

The primary population centres are Thornbury and the modern resort-style communities clustered around the foot of the escarpment near the ski resorts.

Additionally the town's territory also includes the rural communities of Banks, Camperdown, Castle Glen Estates, Christie Beach, Clarksburg, Craigleith, Duncan, Gibraltar, Swiss Meadows, Heathcote, Kolapore, Little Germany, Lora Bay, Loree, Ravenna, Red Wing, Slabtown, and Victoria Corners.

The town was a shipping and processing centre for local agricultural produce especially apples through its harbour on Georgian Bay, Lake Huron.