North Bay to Sault Ste. Marie
Through the Nickel Belt and Canadian Shield — where Northern Ontario begins in earnest
Route Overview
This section marks the transition from "near-north" to genuine Northern Ontario. The highway cuts through the Canadian Shield — ancient Precambrian rock covered in boreal forest, dotted with thousands of lakes. Sudbury, about halfway through, is the last major city you'll see until Thunder Bay, over 1,000 km to the west.
The drive is 475 km and takes about 5 hours without stops. The road is two-lane for most of the route with regular passing lanes. Services thin out west of Sudbury, and by the time you reach Blind River and Thessalon, you're in small-town Northern Ontario where "downtown" means a gas station, a diner, and a hardware store.
North Bay to Sudbury (130 km)
Leaving North Bay, Highway 17 passes through Sturgeon Falls (a small francophone community on the Sturgeon River) and continues to Sudbury through Shield country. The rock cuts along this section expose the pink and grey granite that defines the Shield landscape. You'll cross the French River, a Canadian Heritage River and historic voyageur route, about 75 km west of North Bay.
Sudbury
Population 165,000. Sudbury is a mining city built on the world's largest nickel deposit, created by a meteorite impact 1.85 billion years ago. The Big Nickel — a 9-metre replica of a 1951 Canadian nickel — is the signature landmark. Dynamic Earth next door is a genuine science centre with underground mine tours. The city has invested heavily in re-greening after decades of mining pollution, and the transformation is impressive. Full services: hospitals, mechanics, malls, hotels. Stock up here.
Sudbury to Sault Ste. Marie (310 km)
West of Sudbury, the highway enters the long stretch that earns Northern Ontario its reputation. You'll pass through Espanola (population 5,000, pulp mill town), Spanish, Blind River, Thessalon, and Iron Bridge. These towns exist at 40-80 km intervals and each has at least one gas station and a place to eat.
The highway runs roughly parallel to the North Channel of Lake Huron for much of this section, though you'll only catch glimpses of the water. The terrain is a continuous roll of rock, lake, and forest. It's repetitive in a way that can be hypnotic. Stay engaged.
Espanola
Small pulp and paper town. Fuel, Tim Hortons, basic restaurants. The town sits on the Spanish River and has a community pool and library if you need a longer break. Junction with Highway 6 south to Manitoulin Island — if you have time, Manitoulin is the world's largest freshwater island and has a quieter, more scenic alternative route via the Chi-Cheemaun ferry to Tobermory.
Blind River
Population 3,500. Sits on the North Channel with a nice waterfront park. Fuel, restaurants, and the Timber Village Museum. A reasonable stop if you need a break midway through the Sudbury-to-Sault section. The Blind River Marina is a good spot to stretch your legs and look at the water.
Arriving in Sault Ste. Marie
Sault Ste. Marie (population 73,000) is the gateway to the Lake Superior section. It sits on the St. Mary's River at the rapids that connect Lake Superior to Lake Huron. The Soo Locks on the American side are visible from the Canadian waterfront. The Agawa Canyon Tour Train, a day-long rail excursion into the Shield, runs from the Sault and is widely recommended for fall colours.
This is your last chance to prepare before the most remote section of the Trans-Canada. Top up fuel, check your spare tire, and make sure your vehicle is in good shape. The next 700 km to Thunder Bay has limited services and long gaps between towns. See Sault Ste. Marie to Thunder Bay for the full breakdown.
Quick Facts
- Highway: 17
- From: North Bay
- To: Sault Ste. Marie
- Distance: 475 km
- Drive Time: ~5 hours
- Fuel: Every 40-80 km
- Cell: Gaps west of Sudbury