Stormont, Dundas and Glengarry (SDG Counties)
In the furthest reaches of Eastern Ontario, you’ll find SDG Counties. Comprising six unique municipalities, the region is steeped in history, brims with local charm, and pours passion into its future.
Picturesque villages with heritage buildings, from Williamsburg in the west to Williamstown in the east, possess a timeless appeal. Wondrous waterways beckon boats, fishing rods and swimsuits. Explore endless swaths of forests on foot, bike, snowshoes and skis.
The beautiful, year-round setting serves as a backdrop for a range of amenities, activities, and adventures. SDG Counties are home to great restaurants, wineries, breweries, beaches, boutiques, bass tournaments, B&Bs and accommodations, music and theatre venues, cyclotourism routes, county fairs, lavender-picking farms, campgrounds... and more.
Long Sault Parkway
Where are SDG Counties?
Anchored to the south by the mighty St. Lawrence River, the communities of SDG Counties are nestled in the easternmost wedge of Southeastern Ontario. A short drive to Ottawa, Montreal and New York State, SDG Counties can be easily accessed via Highways 401, 417, US Route 37 and the Three Nations Crossing.
It’s important to acknowledge that this region is located on the traditional lands of the Anishinaabeg and Haudenosaunee Peoples, specifically the Kanien’keha:ka (Mohawk).
View SDG Counties on Google Maps
Things to do in SDG Counties
Watch live motorsport racing
The Cornwall Motor Speedway is a 400-metre dirt track that hosts races on most Sundays with concessions and spectator stands.
Cycle across the region
Use the SDG Cornwall Adventure Club Map to choose the best mountain bike trails or open country roads to ride.
Go wine tasting
Stonehouse Vineyard and Smokie Ridge Vineyard are two vineyards in the region that not only produce great wine, but also host wine tours, tastings and patio events
Visit a dinosaur park
Prehistoric World is a one-kilometre nature trail showcasing life-size dinosaur replicas. Visitors can learn about various historic periods and click memorable family pictures.
Enjoy golf with a view
This region is home to a host of amazing golf courses, such as Summerheights Golf Links, The Cornwall Golf & Country Club, The Upper Canada Golf Course and Heritage Golf Club.
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Last updated: July 11, 2025