2,436 articles
Son
The Son (सोन), also written Sone, is a major ephemeral right-bank tributary of the Ganges in India, rising near Amarkantak and joining it near Patna.
Song Hong
Song Hong (Sông Hồng, Red River), FEOW freshwater ecoregion 761, covers the whole Red River basin in Vietnam, China, and Laos, draining to the Gulf of Tonkin, with 16 endemic fish species and a heavily dammed, sediment-starved delta.
Songhua Jiang
Songhua Jiang (松花江), the Songhua River, is China's third largest river by discharge and the Amur's largest tributary, draining a 556,800 km² basin in northeast China with the Nenjiang and Second Songhua as sources.
Soomaa National Park
Soomaa National Park (Soomaa Rahvuspark), established 1993 in southwestern Estonia, protects 39,843 ha of bogs, floodplains and forests across five bogs, famous for its fifth-season floods covering up to 17,500 ha and the UNESCO-listed haabjas dugout canoe.
Sørvágsvatn
Sørvágsvatn, also called Leitisvatn or Vatnið, is the largest lake of the Faroe Islands (3.4 km²) on Vágar, famous for the Trælanípa-cliff optical illusion that makes it appear to float above the ocean despite sitting only about 30 m above sea level, draining via Bøsdalafossur.
Sound (geography)
In geography, a sound is a long, broad ocean inlet running along a coast or a passage connecting two larger bodies of water, wider than a strait.
Sound of Mull
The Sound of Mull is a narrow sea channel on Scotland's west coast, separating the Isle of Mull from the Morvern peninsula on the mainland.
Souris
Souris River (riviere Souris), called Mouse River in the United States: a 700 km Saskatchewan-North Dakota-Manitoba tributary of the Assiniboine River, governed by the 1989 Canada-US water supply and flood control agreement.
South America Caribbean Drainages - Trinidad
South America Caribbean Drainages - Trinidad is FEOW freshwater ecoregion 304, a Neotropic tropical and subtropical coastal rivers unit covering Caribbean-draining rivers of northern South America plus Trinidad, with South American-derived fish fauna.
South Andean Pacific Slopes
South Andean Pacific Slopes, FEOW freshwater ecoregion 341, covers central Chile's Pacific coastal drainages from Quebrada Seca to the Río Imperial, with short Andean rivers, endemic fishes like Nematogenys inermis, and matorral to Valdivian forests.
South Aral Sea
South Aral Sea (Large Aral), the Uzbekistan portion of the Aral Sea, split from the North Aral Sea by 1987 and nearly dried after Soviet diversion of the Amu Darya; its eastern basin is desiccated, leaving a hypersaline western strip.
South Bay (bay)
South Bay: name of several Antarctic bays, chiefly a large inlet between Hannah Point and Miers Bluff on the south coast of Livingston Island, South Shetland Islands (62°39′S 60°29′W), known to sealers from 1820, hosting Bulgarian and Spanish bases and a leopard seal aggregation; also a bay at Cape Evans, Ross Island.
South China Sea (南海)
The South China Sea (南海, Nanhai; Vietnamese: Biên Dông) is a large marginal sea of the northwest Pacific, a vital trade corridor and the center of major territorial disputes.
South New Zealand
South New Zealand (MEOW ecoregion 200) is a marine ecoregion of the Temperate Australasia realm covering southern South Island coastal waters; 0.4 percent protected, boundaries debated, new Te Au Roa o Te Rakihouia reserves from 2026.
South Platte
The South Platte River is a major tributary of the Platte River that rises in the Colorado Rockies, flows through Denver, and joins the North Platte in Nebraska.
South Sandwich Trench
The South Sandwich Trench is a 965 km oceanic subduction trench east of the South Sandwich Islands, containing the deepest points of the South Atlantic and Southern Ocean.
South Saskatchewan
South Saskatchewan River, formed by the Bow and Oldman rivers in Alberta, flows through Lake Diefenbaker and past Saskatoon to join the North Saskatchewan; its basin covers 172,900 km2 and supplies most of Saskatchewan's drinking water.
South Scotia Ridge
South Scotia Ridge (also South Orkney Ridge): submerged continental-fragment ridge forming the Scotia–Antarctic left-lateral transform plate boundary, southern margin of the Scotia Arc, with two branches, four deeps, and Late Cretaceous–Paleogene pre-translation arc magmatism.
Southeast Adriatic Drainages
Southeast Adriatic Drainages (FEOW ecoregion 420) is a Palearctic temperate coastal rivers ecoregion covering Albanian and western Balkan drainages from the Drin to the Vjosa, rich in endemic fish and eutrophying the southeastern Adriatic coast.
Southeast Indian Ridge
Southeast Indian Ridge (SEIR), the divergent boundary between the Australian and Antarctic plates in the southeastern Indian Ocean; intermediate spreading 58-76 mm/yr, active since 95 Ma, includes the anomalous Australia-Antarctica Discordance.
Southeastern Korean Peninsula
Southeastern Korean Peninsula (FEOW ecoregion 639): temperate coastal-river freshwater ecoregion covering rivers draining to Korea's southern and southeastern coasts, plus Ulluengdo, Jejudo, and Tsushima, with 11 endemic fish species.
Southeastern Mata Atlantica
Southeastern Mata Atlantica is a freshwater ecoregion in southern Brazil covering coastal rivers and lagoons between the Rio Araranguá and the Rio Ribeira de Iguape.
Southern Bug
Southern Bug (Південний Буг), 806 km river entirely within Ukraine, flowing from the Volyn-Podilska Highlands to the Dnipro-Buzky Firth; third-longest such river, historically Hypanis, heavily regulated, and since 2022 Mykolaiv's proposed drinking-water source.
Southern Central Sumatra
Southern Central Sumatra (FEOW ecoregion 738) is an Indonesian freshwater ecoregion of tropical coastal rivers draining to the Strait of Malacca, including the Rokan, Siak, Kampar, Indragiri, and Batang Hari rivers, with about 20 endemic fish species and the highest functional richness (154 FEs) among Sundaland's 13 freshwater ecoregions.
Southern Eastern Rift
Southern Eastern Rift, FEOW ecoregion 566, a freshwater ecoregion of the Gregory Rift Valley in Kenya and Tanzania; xeric, endorheic basins with soda lakes (Natron, Magadi, Nakuru), endemic Oreochromis fish, and over a million flamingos and wetland birds at key sites.
Southern Gulf of Guinea Drainages
Southern Gulf of Guinea Drainages is a freshwater ecoregion, number 533 in the FEOW framework, covering short coastal rivers in Cameroon, Congo, Equatorial Guinea, and Gabon known for endemic fishes.
Southern Hudson Bay
Southern Hudson Bay (FEOW ecoregion 110) is a Canadian freshwater ecoregion of temperate coastal rivers draining northeastern Manitoba, northern Ontario, and western Quebec into Hudson and James bays, with depauperate, non-endemic fish fauna.
Southern Iberia
Southern Iberia is a freshwater ecoregion, number 413 in the Freshwater Ecoregions of the World framework, covering Spain's far south from the Guadiana to the Segura rivers.
Southern Ocean
The Southern Ocean, the ocean encircling Antarctica to 60°S, is defined by the Antarctic Circumpolar Current and takes up roughly 43% of oceanic anthropogenic CO2 and 75% of ocean heat uptake.
Southern Tasmania
Southern Tasmania (FEOW ecoregion 810) is Australia's smallest freshwater ecoregion, 36,000 sq km of highland-draining rivers and glacial lakes, with seven endemic Galaxiidae fish species and 39 estuaries in the southern NRM region.