As of 2026-08-21, Manicouagan Reservoir tops the list with 350 m.
- #1 Manicouagan Reservoir — 350 m
lake in Quebec, Canada
Manicouagan Reservoir is an annular lake in central Quebec, Canada, covering an area of 1,942 km2 (750 sq mi). The lake island in its centre is known as René-Levasseur Island, and its highest point is Mount Babel. The structure was created 214 (±1) million years ago, in the Late Triassic, by the impact of a meteorite 5 km (3 mi) in diameter. The lake and island are clearly seen from space and are sometimes called the "eye of Quebec" The lake has a volume of 137.9 km3 (33.1 cu mi). Read more on Wikipedia.
Wikidata - #2 Williston Lake — 166 m
large reservoir in British Columbia, Canada
Williston Lake is a reservoir created by the W. A. C. Bennett Dam which is located in the Northern Interior of British Columbia, Canada. Read more on Wikipedia.
Wikidata - #3 Ross Lake — 165 m
reservoir in Washington state, United States of America and British Columbia, Canada
Ross Lake is a large reservoir in the North Cascade mountains of northern Washington state, United States, and southwestern British Columbia, Canada. The lake runs approximately north–south, is 23 miles (37 km) long, up to 1.5 miles (2.5 km) wide, and the full reservoir elevation is 1,604 feet above sea level. Read more on Wikipedia.
Wikidata - #4 Lac Sakami — 113 m
reservoir in Quebec, Canada
Lac Sakami is a lake in the northwest of the province of Quebec in Canada. It is located east of James Bay, south of the Robert-Bourassa Reservoir and north of the Opinaca Reservoir. Read more on Wikipedia.
Wikidata - #5 Lake Tremblant — 91 m
lake in Lac-Tremblant-Nord, Quebec, Canada
Lake Tremblant is a lake in the Laurentides region of Quebec, Canada, at the foot of the eponymous Mont Tremblant. South of the lake is the city of Mont-Tremblant, and the municipality of Lac-Tremblant-Nord borders on the western and northern sides of the lake. Read more on Wikipedia.
Wikidata - #6 Lake Diefenbaker — 66 m
reservoir in Saskatchewan, Canada
Lake Diefenbaker is a reservoir and bifurcation lake in the southern part of the Canadian province of Saskatchewan. It was formed by the construction of the Gardiner Dam and the Qu'Appelle River Dam across the South Saskatchewan and Qu'Appelle Rivers respectively. Construction began in 1959 and the lake was filled in 1967. Lake Diefenbaker is the largest body of water in southern Saskatchewan, although Last Mountain Lake is the largest naturally occurring one. The lake was named after John G.... Read more on Wikipedia.
Wikidata - #7 Spray Lakes Reservoir — 65 m
reservoir in Alberta, Canada
Spray Lakes Reservoir is a reservoir in Alberta, Canada. The Spray Lakes were a string of lakes formed along the Spray River, a tributary of the Bow River. With the damming of the river, the lakes were united in the Spray Lakes Reservoir. Read more on Wikipedia.
Wikidata - #8 Lac au Sorcier — 53 m
lake in Saint-Alexis-des-Monts, Mauricie, Canada
source Wikidata - #9 Caniapiscau Reservoir — 50 m
large reservoir in Quebec, Canada
The Caniapiscau Reservoir is a reservoir on the upper Caniapiscau River in the Côte-Nord administrative region of the Canadian province of Quebec. It is the largest body of water in Quebec and the second largest reservoir in Canada. Read more on Wikipedia.
Wikidata - #10 Lac Seul — 47 m
reservoir in Kenora District, Ontario, Canada
Lac Seul is a large, crescent-shaped reservoir in Kenora District, northwestern Ontario, Canada. It is approximately 241 km (150 mi) long. It has a maximum (regulated) depth of 47.2 m, with a surface elevation of 357 m above sea level. Its level is raised in the summer and then drawn down in the winter months to reach points of as low as 4.9 m below the maximum level. It is the second largest body of water entirely within the province of Ontario. Read more on Wikipedia.
Wikidata