2,436 articles
Long Lake (Indiana)
Long Lake (Indiana Dunes, near Gary, Indiana): East and West Long Lake, large shallow interdunal lakes in Indiana Dunes National Lakeshore, formed from glacial Lake Chicago remnants; seeps into groundwater; distinct from Long Lakes in Noble and Steuben Counties.
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.
Lord Howe Rise
Lord Howe Rise: submerged continental plateau of Zealandia, ~2,000 km long east of Australia, 20–23 km thick crust, rifted from Australia during Tasman Sea opening (~83–85 Ma), Cretaceous rhyolites, frontier petroleum region.
Lord Howe Seamount Chain
The Lord Howe Seamount Chain (LHSC) is an age-progressive ~1,000 km north-south line of at least 19 guyots, reefs, and banks on the Lord Howe Rise in the Tasman Sea, formed 28-7 Ma as the Australian plate moved north over a hotspot; Lord Howe Island and Ball's Pyramid are its only islands.
Los Angeles River
The Los Angeles River, also called the LA River, is a 51-mile waterway from Canoga Park to Long Beach, mostly concrete-channelized after the 1938 flood and now the focus of major ecosystem restoration and recreation efforts.
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.
Lourdes water
Lourdes water is the spring water from the Grotto of Massabielle, uncovered by Bernadette Soubirous on 25 February 1858; pilgrims drink and wash with it free of charge, and analyses find no special properties.
Lower & Middle Indus
Lower & Middle Indus, FEOW freshwater ecoregion 703, the Indus basin downstream of Tarbela Dam in Pakistan and India; tropical floodplain rivers draining to the Arabian Sea, with endemic fishes and the Indus River dolphin.
Lower & Middle Salween
Lower & Middle Salween, FEOW freshwater ecoregion 722, spans the middle and lower Salween basin in Myanmar, China, and Thailand plus the Tenasserim River; 45 endemic fish species, threatened by proposed dams.
Lower & Middle Syr Darya
Lower & Middle Syr Darya, FEOW freshwater ecoregion 626, a temperate upland-river ecoregion of the Syr Darya, Chu, and Sarysu drainages across Kazakhstan, Kyrgyzstan, Tajikistan, and Uzbekistan, draining to the Aral Sea.
Lower Amur
Lower Amur: lowland reach of the Amur River in the Russian Far East and FEOW freshwater ecoregion 616, with the Ussuri and Khanka Lake basin; wide floodplains, high mollusc endemism, Lower Amur grayling, and Lake Bolon Ramsar wetland.
Lower Congo
Lower Congo: the ~350 km lower course of the Congo River from Pool Malebo to the Atlantic, dropping 280 m through rapids; also two FEOW freshwater ecoregions and the offshore Lower Congo sedimentary basin, noted for endemic, convergently evolved fish.
Lower Huang He
Lower Huang He (Lower Yellow River): the levee-confined lower reach of China's Yellow River from Taohuayu near Zhengzhou to the Bohai Sea; perched bed, 26 historical avulsions, water-sediment regulation since 2002.
Lower Lancang (Mekong)
Lower Lancang (Mekong), FEOW freshwater ecoregion 726, spans the Mekong from the Nam Kading upstream to Xishuangbanna across Burma, China, Laos, Thailand, and Vietnam; hill-stream endemic fish fauna, heavily dammed Lancang headwaters.
Lower Mackenzie
Lower Mackenzie (FEOW ecoregion 105) is a Nearctic polar-freshwaters ecoregion in Canada covering the lower Mackenzie River, Great Bear Lake, and tributaries such as the Liard, draining to the Arctic Ocean, with 38 fish species from Beringian and Mississippian refugia.
Lower Mississippi
Lower Mississippi: the 1,535-km unimpounded reach of the Mississippi River from the Ohio River confluence at Cairo, Illinois to the Gulf of Mexico; heavily leveed floodplain, over 90% floodplain loss, delta restoration efforts.
Lower Niger - Benue
Lower Niger - Benue (FEOW ecoregion 505): freshwater ecoregion covering the Benue basin and the lower and middle Niger from below Tombouctou to the Niger Delta, with about 202 fish species, 17 endemics, biannual black and white floods, and Kainji and Jebba dam regulation.
Lower Nile
Lower Nile (FEOW ecoregion 523) is a xeric freshwater ecoregion spanning the Nile from Khartoum to the Nile Delta across Egypt, Sudan, Eritrea, and Ethiopia; no endemic fish, vulnerable conservation status, Priority Class V.
Lower Parana
Lower Parana, FEOW freshwater ecoregion 345 (Bajo Paraná), the lower Paraná River drainage below Itaipú Dam and Guaíra Falls across Argentina, Paraguay, and Uruguay; temperate floodplain rivers and wetlands with 53 endemic fish species ending in the Río de la Plata delta.
Lower Rio Grande - Bravo
Lower Rio Grande - Bravo is a freshwater ecoregion, FEOW number 135, covering the lower Rio Grande basin from the Río Conchos confluence to the Gulf of Mexico.
Lower Tigris & Euphrates
Lower Tigris & Euphrates is a freshwater ecoregion covering the lower Tigris and Euphrates rivers, the Mesopotamian floodplain of Iraq and adjacent Iran, Syria, Turkey, and Kuwait.
Lower Uruguay
Lower Uruguay (FEOW ecoregion 332), freshwater ecoregion of the lower Río Uruguay basin across Brazil, Argentina, and Uruguay, from Yucumã Falls to the Río de la Plata; 270,190 km², at least 295 fish species with 37 endemics, shaped by Salto Grande dam and seasonal floods.
Lower Yangtze
Lower Yangtze: the easternmost reach of the Yangtze River (Chang Jiang) with Anhui, Jiangsu, Zhejiang, and Shanghai; temperate floodplain wetlands, polder agriculture, large lakes, and endemic fishes draining to the East China Sea.
Lower Zambezi
Lower Zambezi: the 593 km Zambezi reach below Cahora Bassa gorge, a freshwater ecoregion with delta, and Zambia's Lower Zambezi National Park, a water-based safari and elephant conservation landscape.
Lualaba (луалаба, rivers_lake_centerlines:43)
The Lualaba (луалаба) is the headstream and upper course of the Congo River in the Democratic Republic of the Congo, named the Congo at Kisangani.
Luangwa Flood Plains
Luangwa Flood Plains: 250,000 ha Ramsar site (no. 1660, designated 2 February 2007) in Eastern Province, Zambia, along the unregulated Luangwa River; spans South Luangwa, North Luangwa, and Luambe national parks and three game management areas, with over 50 mammal and 400 bird species.
Lukeni
Lukeni (Lukenie, Lukenye), a 1,225 km river in the Democratic Republic of the Congo, rising in Sankuru province at about 570 m and joining the Fimi near Kutu; eighth longest DRC river, navigable to Kole.
Lulworth Cove
Lulworth Cove, Dorset, England: an almost circular bay on the Jurassic Coast World Heritage Site, cut where the sea breached hard Portland limestone and eroded softer Purbeck, Wealden, and Greensand rocks behind the Purbeck Monocline.
Lungwebungu
The Lungwebungu (Portuguese: Lungué-Bungo) is the longest tributary of the upper Zambezi, rising in central Angola and flowing 1,032 km southeast to join the Zambezi at Lukulu, Zambia.