390 articles
Lesser Slave
Lesser Slave denotes Lesser Slave Lake and the Lesser Slave River in Alberta, Canada: a 1,160 km² boreal lake, Alberta's largest managed fishery, draining east into the Athabasca River near the town of Slave Lake.
Limnic eruption
Limnic eruption: the sudden release of dissolved CO2 from a stratified lake, known from Lake Monoun (1984, 37 deaths) and Lake Nyos (1986, ~1,700 deaths) in Cameroon; mitigated by degassing pipes.
List of cities on the Great Lakes
Cities on the Great Lakes: shoreline municipalities on Lakes Superior, Michigan, Huron, Erie, and Ontario in the U.S. and Canada, including Chicago, Toronto, Detroit, Milwaukee, Cleveland, Buffalo, and Thunder Bay.
List of lakes of Canada
List of lakes of Canada: Canada has more lake area than any country, with 563 lakes over 100 km². Largest include Great Bear (31,328 km²), Great Slave (deepest, 614 m), Lake Winnipeg, and the shared Great Lakes.
List of lakes of Finland
Lakes of Finland: about 188,000 lakes over five ares (official count 187,888), covering 33,522 km² or 9.9% of the country; largest are Saimaa, Inari, and Päijänne; mean depth about 7 meters.
List of lakes of India
Lakes of India: natural and man-made standing waters, from Himalayan glacial lakes to Kerala's Vembanad lagoon and Rajasthan's saline Sambhar. 22,361 lakes counted in the 2017-18 census; 101 Ramsar wetland sites as of 2026.
List of lakes of the Lake District
List of lakes of the Lake District: the 16 major waters of England's largest national park, Cumbria. Windermere (14.8 km²) is largest and longest, Wastwater deepest (74 m); Bassenthwaite Lake is the only one officially named a lake.
List of lochs of Scotland
The lochs of Scotland are its standing waters: over 30,000 freshwater lochs from small lochans to Loch Lomond and Loch Ness, plus fjord-like sea lochs.
List of reservoirs by volume
List of reservoirs by volume: ranks artificial lakes behind dams by storage in km³. Lake Kariba (180.6 km³), Bratsk (169.3 km³), and Lake Volta (150 km³) lead; Three Gorges ranks 24th.
List of shipwrecks in Lake Michigan
Shipwrecks of Lake Michigan: about 1,200 estimated wrecks including the Francisco Morazan, Westmoreland, Trinidad, and Lac La Belle, their discovery, protection under underwater preserves, and quagga mussel threats.
List of shipwrecks in the Great Lakes
The list of shipwrecks in the Great Lakes covers thousands of vessels lost in Superior, Michigan, Huron, Erie, and Ontario since the 17th century, including the Edmund Fitzgerald.
Loch Lomond
Loch Lomond, a glacial freshwater loch in southern Scotland, is Scotland's largest loch by surface area at 71 km2, has deep northern and shallow southern basins, and anchors Loch Lomond & The Trossachs National Park, Scotland's first national park (2002).
Loch Ness
Loch Ness (Loch Nis) is a large, deep freshwater lake in the Great Glen of the Scottish Highlands, holding more water than any other British lake.
Lochaber
Lochaber is a district of the west Scottish Highlands in the Highland council area, home to Ben Nevis and Glen Coe, marketed as the Outdoor Capital of the UK, with tourism about 30% of GDP and a 2024 National Park nomination.
Loktak Lake
Loktak Lake, in Bishnupur district, Manipur, is the largest freshwater lake in Northeast India, a Ramsar site (no. 463, designated 1990) famous for its floating phumdis and Keibul Lamjao National Park, the world's only floating national park and home of the Sangai deer.
Lonar Lake (लोणार सरोवर)
Lonar Lake (लोणार सरोवर), also called Lonar crater lake, is a saline, alkaline lake filling a meteorite impact crater in Buldhana district, Maharashtra, India, the only known such crater excavated entirely in basalt.
Lop Nur
Lop Nur (Lop Nor, Luobupo) is a dried salt lake and playa at the eastern end of China's Tarim Basin in Xinjiang, terminus of the Tarim River, famous for the wandering-lake dispute, the "Ear" salt crust, the Loulan Kingdom, and the nuclear test site.
Lough Neagh
Lough Neagh, in Northern Ireland, is the largest freshwater lake in the British Isles at about 383 km2. It drains via the Lower Bann, supplies 40% of NI drinking water, sits in a Paleocene pull-apart basin, and faces recurring blue-green algae blooms.
Lough Neagh & Lough Beg
Lough Neagh & Lough Beg: linked lakes in central Northern Ireland; Lough Neagh is the UK's largest freshwater lake (383 km2), a Ramsar site supplying 40% of NI drinking water, affected by the 2023 toxic algal bloom.
Mackay
Mackay: Lake Mackay (Wilkinkarra), a large ephemeral salt lake on the Western Australia–Northern Territory border, Australia's fourth largest salt lake, named for explorer Donald Mackay, and site of a proposed potash project.
Mai-Ndombe (landform)
Lake Mai-Ndombe (Lac Mai-Ndombe), 'black water' in Kikongo, is Africa's largest humic black-water lake (~2,250 km2, ~4 m deep) in the Tumba-Ngiri-Maindombe wetland complex, Cuvette Centrale, DR Congo, draining via the Fimi River and emitting CO2, CH4, and N2O including millennial-aged peat carbon.
Mälaren
Mälaren, or Lake Mälaren, is Sweden's third largest lake, west of Stockholm, with over 8,000 islands and UNESCO Viking-Age Birka; it supplies drinking water to about two million people.
Malheur
Malheur refers to a freshwater lake in Harney Basin, Oregon, and surrounding features like the wildlife refuge. It is the northernmost internally draining basin in the Great Basin.
Malili Lakes
The Malili Lakes are five interconnected ancient lakes in central Sulawesi, Indonesia, comprising Matano, Mahalona, Towuti, Lontoa, and Masapi, holding endemic species flocks of fishes, snails, shrimps, and crabs.
Man Drowned Himself Lake
Man Drowned Himself Lake is an official lake in the Mackenzie district, Sahtu region, Northwest Territories, Canada, at 65.6932° N, 123.2143° W, about 9 km long, named for a recorded drowning.
Manicouagan Reservoir
Manicouagan Reservoir (Réservoir Manicouagan, Innu Manikuakan), the 'Eye of Québec', is a 1,940 km² ring-shaped hydroelectric reservoir in Québec filling the annular moat of a ~214-million-year-old impact crater, dammed by Hydro-Québec's Daniel-Johnson Dam in the 1960s.
Mar Chiquita
Mar Chiquita (Mar de Ansenuza), Córdoba, Argentina: South America's largest saline lake, a closed endorheic basin fed by the Dulce, Suquía, and Xanaes rivers; salinity 28–360 g/L, Ramsar site, Ansenuza National Park. Distinct from the Buenos Aires coastal lagoon of the same name.
Mar Chiquita - Salinas Grandes
Mar Chiquita (Mar de Ansenuza) is Argentina's largest saline lake, a closed-basin lake in Córdoba fed mainly by the Dulce River; Salinas Grandes and Salinas de Ambargasta are its neighboring dried salt flats.
Markermeer & IJmeer
Markermeer & IJmeer: shallow freshwater lakes in the central Netherlands, created in 1976 by the 26 km Houtribdijk; IJmeer is the southern part. Natura 2000 and Ramsar site 1245, 68,463 ha, turbid silt bed, Marker Wadden restoration.
Martre
Lac la Martre (Martin's Lake) is a 1,776 km² shallow glacial lake in the Northwest Territories at Whatì, draining via the La Martre River (14,500 km² watershed) to Great Slave Lake; its streamflow has risen more than any other gauged NWT catchment.