Deepest reservoirs

Deepest reservoirs ranked by vertical depth.

Last updated . Source: Wikidata.

As of 2026-05-01, Balsamand Lake tops the list with 1,000 m.

  1. #1 Balsamand Lake — 1,000 m

    lake in India

    Balsamand Lake is a lake situated 5 kilometres (3.1 mi) from Jodhpur on Jodhpur-Mandore Road. This lake is a popular picnic spot, by Balak Rao Pratihar in 1159 AD who belongs to the kshatriya community. It was designed as a water reservoir to provide water to Mandore. The lake has a length of one kilometre (0.62 mi), breadth of 50 metres (160 ft) and a depth of 15 metres (49 ft). Read more on Wikipedia.

    Wikidata
  2. #2 Klingnauer Stausee — 500 m

    reservoir

    The Klingnauer Stausee is a reservoir near Böttstein, canton of Aargau, Switzerland, at 47°35′N 8°14′E. The reservoir with a surface of 1.16 km2 (0.45 sq mi) was formed at the construction of a power plant on the Aare river in the 1930s. Read more on Wikipedia.

    Wikidata
  3. #3 Sihwa lake — 467 m

    lake made by the Sihwa tidal barrage

    source Wikidata
  4. #4 Tinnsjå — 460 m

    lake in Notodden and Tinn, Telemark, Norway

    Tinnsjå is one of the largest lakes in Norway measuring about 51.38 km2 (19.84 sq mi). At a depth of 460 m (1,510 ft) it is the third deepest lake in Norway and Europe. Tinnsjå is located in the municipalities of Tinn and Notodden in Telemark county. At its source in the west, the Måna river flows out of the lake Møsvatn and past the town of Rjukan into Tinnsjå. From the north, the river Mår flows from the lakes Mår, Gøystavatn, and Kalhovdfjorden into Tinnsjå. Tinnsjå is part of... Read more on Wikipedia.

    Wikidata
  5. #5 Lake Chelan — 453 m

    lake in Chelan County, Washington, United States of America

    Lake Chelan is a narrow, 50.5 mi (81.3 km) long lake in Chelan County, north-central Washington state, U.S. It is an overdeepened lake and resembles a fjord, with an average width of 1.3 mi (2.1 km). Near its upper end, the lake surface lies more than 6,600 ft (2,000 m) below peaks less than 3 mi (4.8 km) away. Before 1927, Lake Chelan was the largest natural lake in the state, in terms of both surface area and water volume. Upon the completion of Lake Chelan Dam in 1927, the elevation... Read more on Wikipedia.

    Wikidata
  6. #6 Mjøsa — 453 m

    lake in Norway

    Mjøsa is the largest lake in Norway and the fourth deepest in Norway and Europe. It is located in the southern part of Norway, about 100 kilometres (62 mi) north of the city of Oslo. Its main tributary is the river Gudbrandsdalslågen flowing in from the north; the only distributary is the river Vorma in the south. Inflows would theoretically need 5.6 years to fill the lake. With an average depth of about 150 metres (490 ft), most of the lake's volume is under sea level. The average outflow... Read more on Wikipedia.

    Wikidata
  7. #7 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
  8. #8 Totak — 306 m

    lake in Vinje, Telemark, Norway

    Totak is a lake in Vinje Municipality in Telemark county, Norway. The 37.26-square-kilometre (14.39 sq mi) lake is located in the Rauland area, about 10 kilometres (6.2 mi) to the north of the village of Åmot. The lake is part of the Skien river watershed (Skiensvassdraget), discharging via the river Tokke which flows into the lake Bandak to the south. At 306 metres (1,004 ft) deep, Totak is the 11th deepest lake in Norway. This tremendous overdeepening marks it as a glacially formed lake... Read more on Wikipedia.

    Wikidata
  9. #9 Lac de Mauvoisin — 258 m

    reservoir

    Lac de Mauvoisin is a reservoir in the canton of Valais, Switzerland. The reservoir is formed by the Mauvoisin Dam, which is 250 metres (820 ft) high. The dam is the 11th highest in the world, and the 6th highest arch dam. It was built in 1951–1957, and raised by 13.5 metres (44 ft) in 1991. Read more on Wikipedia.

    Wikidata
  10. #10 Nisser — 234 m

    lake in Kviteseid and Nissedal, Telemark, Norway

    Nisser is a lake in Telemark county, Norway. It is located in Nissedal and Kviteseid municipalities, and is Telemark's largest lake. The lake is the 10th-largest lake in the nation by area with a surface area of 76.07 km2 (29.37 sq mi). The 8th largest by volume at 7.074 km3 (1.697 cu mi). The 16th deepest at 234 m (768 ft). Nisser has the greatest average depth of the Norwegian lakes that is not a cryptodepression. Its entire lakebasin is above sealevel. As part of the Arendal... Read more on Wikipedia.

    Wikidata