Soo Locks
Sault Ste. Marie, MI
Watch 1,000-foot freighters rise and drop between Lake Superior and Lake Huron from the free viewing platform.
The Soo Locks in Sault Ste. Marie, Michigan, connect Lake Superior and Lake Huron along the St. Marys River. They bypass rapids with a drop of about 21 feet (6.4 m). The first locks of the present complex opened in 1855; the U.S. Army Corps of Engineers has operated them since 1881, and passage is free for ships. The Poe Lock, built in 1896, was rebuilt in 1968 and is now 1,200 feet (366 m) long. The longest active ship on the Great Lakes, the Paul R. Tregurtha, measures about 1,013 feet (309 m).
Soo Locks Park has an elevated viewing platform right at the locks and a visitor center with exhibits, which the city website says is open daily from 10 a.m. to 7 p.m., May 1 to October 31 (as of October 2026). Admission is free. The park also has a lighted fountain and a Japanese torii. You can find out when the next ship is due by phone or through the city's “Finding Freighters” guide. The locks close in winter, from January 15 to March 25 according to the city website; a new lock is being built next to the Poe Lock.
- Nearest town
- Sault Ste. Marie, MI
- Category
- Roadside oddities
- GPS
- 46.5040, -84.3500
Hours, fees and access change. Confirm with the operator or park before you go.
Good to know
Best time to go
The most pleasant months are usually May–June and September. Still fine, with some compromises, in July–August and October. Cold, short days in December–March. (Estimate from long-term temperature averages, terrain and pass seasons)
Sources
Featured in these trip guides
Nearby
.jpg){kind=link}
Campsites nearby
- Soo Locks CampgroundMotorhome stopover1 mi from Soo LocksMotorhomes
- Aune-Osborn CampgroundMotorhome stopover2 mi from Soo Locks · 100 pitchesMotorhomesElectricityWi-Fi
- Kewadin RV ParkCampsite2 mi from Soo Locks
- Minnow Lake CampgroundMotorhome stopover9 mi from Soo LocksMotorhomes
- Bay Mills RV ParkMotorhome stopover13 mi from Soo LocksMotorhomes
- Munuscong River State Forest CampgroundCampsite20 mi from Soo Locks
All campsites in Michigan · Campsite data: © OpenStreetMap contributors, ODbL 1.0 · Updated October 3, 2026
FAQs
Where is Soo Locks?
Soo Locks is in Sault Ste. Marie, MI, at GPS 46.5040, -84.3500. It is about 34 mi from Whitefish Point.
Can you camp near Soo Locks?
Yes. The nearest campsite listed in OpenStreetMap is Soo Locks Campground, about 1 mi away; within 25 mi there are 11 campsites and motorhome stopovers.
Which road trips pass Soo Locks?
Soo Locks is a stop on these CampingSpirit trip guides: Tunnel of Trees and Michigan’s eastern Upper Peninsula.
What is there to see near Soo Locks?
Places worth a stop nearby: Whitefish Point Light and Shipwreck Museum (34 mi), Tahquamenon Falls (43 mi), Arch Rock (46 mi) and Fort Mackinac (47 mi).
When is the best time to visit Soo Locks?
The most pleasant months are usually May–June and September. Still fine, with some compromises, in July–August and October. (Estimate from long-term temperature averages, terrain and pass seasons)