414 articles
Store Mosse National Park
Store Mosse National Park: Sweden's largest active raised bog, 7,682 ha in Småland 15 km NE of Värnamo, national park since 1982, Ramsar site 20, Natura 2000 SE0310020, with Lake Kävsjön birdlife and 2023–2025 restoration.
Strand swamp
Strand swamp (also cypress strand) is a Florida natural community: a shallow, elongated, forested wetland channel dominated by bald cypress, with 200-300 day hydroperiod, peat-over-limestone soils, and rare fire, best exemplified by the Fakahatchee Strand.
Suaeda
Suaeda (seepweed, seablite) is a genus of about 94 accepted halophytic herbs and shrubs in Amaranthaceae, subfamily Suaedoideae, published in 1776. It grows in coastal and desert saline soils worldwide, tolerates 200 mM NaCl or more, and is used for food, oil, and saline-land restoration.
Sudd
The Sudd is Africa's largest wetland, a White Nile floodplain swamp in South Sudan covering about 57,000 km2, a 2006 Ramsar site famed for shoebill and antelope migrations and threatened by the unfinished Jonglei Canal.
Sulphur spring
Sulphur spring (sulfur spring): a spring whose water contains natural sulfur compounds, usually hydrogen sulfide with a rotten-egg odor; volcanic or petroleum-derived, acid-sulfate chemistry, mineral deposits, and historical balneotherapy use.
Sumatran peat swamp forests
Sumatran peat swamp forests are ombrogenous tropical rainforests on peat soils, originally about 7 million ha, rich in carbon and endemic wildlife, now heavily logged, drained, burned, and converted to oil palm and pulp plantations.
Suncheon Bay Ecological Park
Suncheon Bay Ecological Park (순천만자연생태공원) is a 2004 visitor and education complex at Suncheon Bay, South Korea, a 3,550-hectare Ramsar wetland (2006) famed for its reed beds, hooded cranes, and 1.9 million annual visitors.
Sungei Buloh Wetland Reserve
Sungei Buloh Wetland Reserve is Singapore's first ASEAN Heritage Park, a 202-hectare wetland reserve in northwest Singapore with mangroves, mudflats and over 200 bird species, opened in 1993 and gazetted in 2002.
Sutherland Falls
Sutherland Falls (Te Tau-tea) is a 580 m three-leap waterfall from Lake Quill to the Arthur Valley in Fiordland, New Zealand, discovered by Donald Sutherland in 1880 and visited via a side trip from the Milford Track.
Swale (landform)
Swale (landform): a shallow open depression lacking a defined channel; also called slack. Covers coastal dune swales between beach ridges, prairie swales, and designed vegetated stormwater channels, from Old Norse svalr.
Swamp
A swamp is a wetland dominated by woody trees or shrubs, distinguished from marshes by vegetation; major types are forested and shrub swamps, including mangrove swamps, with flood-protection and nutrient-removal functions.
Swamps and tall-herb fens in the British National Vegetation Classification system
Swamps and tall-herb fens are NVC vegetation types S1–S28, also called British Plant Communities Volume 4 wetland communities, covering reed-beds, sedge swamps and tall-herb fens used in SSSI and Annex I habitat assessment.
Sweet Track
The Sweet Track is an Early Neolithic timber walkway in the Somerset Levels, England, built 3807/6 BC across about 2 km of reed swamp from Westhay to the Polden Hills; discovered in 1970 by peat digger Ray Sweet, it is Britain's oldest known timber trackway and a Scheduled Monument.
Syvash
Syvash (Сиваш), the Rotten or Putrid Sea, is the world's largest hypersaline lagoon (about 2,560 km²) between Crimea and the Ukrainian mainland, separated from the Sea of Azov by the Arabat Spit; its salinity fell under North Crimean Canal inflow and rose sharply after the canal's 2014 closure.
Széchenyi thermal bath
Széchenyi Thermal Bath (Széchenyi Gyógyfürdő), Budapest's largest medicinal bath in City Park, opened 1913 from Győző Czigler's Neo-Baroque design, fed by artesian wells drilled by Vilmos Zsigmondy, with 18 pools.
Tahquamenon Falls
Tahquamenon Falls: pair of waterfalls on the Tahquamenon River in Michigan's Upper Peninsula; Upper Falls over 200 feet wide, among the largest east of the Mississippi after Niagara, within Michigan's second-largest state park, dedicated 1947.
Tallest waterfalls by continent
A survey of the tallest waterfall on each continent, from Angel Falls in Venezuela to Tugela Falls in South Africa, covering their heights, definitions, and disputed measurements.
Tärnasjön
Tärnasjön (Lake Tärna), Ramsar Site no. 29 in Västerbotten, Sweden, designated 5 December 1974; a 23,236 ha alpine lake on the upper Umeälven with the southernmost palsa mires in Sweden.
Tequendama Falls
Tequendama Falls (Salto del Tequendama) is a roughly 157-meter plunge waterfall on the Bogotá River about 30 km southwest of Bogotá, Colombia, long a major tourist attraction and later known for pollution and restoration efforts.
Terme di Saturnia
Terme di Saturnia: sulfurous thermal springs at Saturnia, southern Tuscany, emerging at 37.5°C and 500 L/s after a 40-year underground journey; free Cascate del Mulino pools plus a resort and thermal park.
Termini Imerese
Termini Imerese (ancient Thermae Himeraeae, Θερμαὶ ῾Ιμεραῖαι) is a Sicilian coastal town 39 km from Palermo, founded by Carthaginians after 409 BC, an Augustan colony famed for hyperthermal springs of about 43 °C, Roman baths, aqueduct, and amphitheater.
The Broads
The Broads (Norfolk and Suffolk Broads): Britain's largest protected wetland, a network of flooded medieval peat diggings in Norfolk and Suffolk with national-park-equivalent status, 125 miles of lock-free waterways, and the Broads Authority as its managing body.
The Fens
The Fens: drained wetlands of eastern England around The Wash, reclaimed from the 17th century by Vermuyden's Bedford Level works into prime arable land, now facing peat subsidence, pumped drainage, and the Fens 2100+ climate program.
The Senator (tree)
The Senator was a giant bald cypress (Big Tree) in Longwood, Florida, estimated 2,500-3,500 years old and the largest tree east of the Mississippi until it burned on January 16, 2012.
Thermopolis, Wyoming
Thermopolis, Wyoming: county seat of Hot Springs County in the Bighorn Basin, home of Hot Springs State Park, Big Spring (3.6 million gallons/day at 135°F), and the free State Bath House guaranteed since the 1896 Shoshone-Arapaho cession.
Thorsberg moor
Thorsberg moor (Thorsberger Moor, Thorsbjerg Mose) is an Iron Age war-booty sacrifice bog near Süderbrarup, Germany, excavated 1858–61 by Conrad Engelhardt; deposits c. 100 BC–5th century AD preserve Roman helmets, mail, and textiles.
Tidal creek
Tidal creek, also called tidal channel or mangrove creek: a small channel network in coastal wetlands, tidal along its entire length, draining watersheds under 50 km2 into estuaries. Known for dendritic tapering channels, nursery habitat for fisheries, and remote-sensing extraction methods.
Tidal freshwater marsh
A tidal freshwater marsh is a herbaceous wetland in the upper estuary or tidal river, where ocean tides move the water twice daily but river discharge keeps it fresh.
Tidal marsh
Tidal marsh (salt marsh): vegetated intertidal coastal wetland, a blue carbon ecosystem burying carbon about 40 times faster than forests. Distinguished from mangroves and seagrass; US tidal marshes lost 1,567 km2 over four decades, driven by sea level rise and extreme weather.
Tollund Man
Tollund Man (Tollundmanden), Iron Age Danish bog body found 1950 in Bjældskovdal bog near Silkeborg; hanged man dated 375–210 BC, displayed at Museum Silkeborg, famous for his preserved face and last-meal studies.