3,546 articles
Tepui
Tepuis (tepuy) are flat-topped Proterozoic sandstone table mountains of the Guiana Highlands in Venezuela, Guyana, and Brazil, over 60 in number, with cliffs to 1,000 m, the Pantepui endemic biota, Angel Falls, and Canaima National Park.
Teraina
Teraina (Washington Island) is a 14.2 km² coral atoll in Kiribati's Northern Line Islands, unusual for its freshwater lake, high rainfall, endangered Rimatara Lorikeet population, and copra economy.
Terceira Island
Terceira Island, Azores, Portugal: volcanic island, 403.4 km², highest point Serra de Santa Bárbara 1,021 m; home to Angra do Heroísmo, UNESCO World Heritage historic center since 1983.
Ternyck Needle
Ternyck Needle (Aiguille Ternyck) is a nunatak peak east of Martel Inlet, Admiralty Bay, King George Island, South Shetland Islands; charted by Charcot's 1908-10 French expedition, first climbed by FIDS in 1949.
Terrain features of Antarctica
Terrain features of Antarctica surveys its mountain ranges, nunataks, and ice-free valleys, from the 3200 km Transantarctic Mountains to Mt Vinson, 4892 m, and the ice-buried Gamburtsev range.
Teton Range
The Teton Range is a fault-block range in northwestern Wyoming, lifted less than 10 million years ago by the Teton fault above Jackson Hole; Grand Teton reaches 13,770 feet over 2.7-billion-year-old gneiss.
Teufelsberg
Teufelsberg (Devil's Mountain) is a 120.1 m artificial rubble hill in Berlin's Grunewald, built over a Nazi military academy shell, topped by the NSA/GCHQ Field Station listening post (1962-1992), now a street art gallery and visitor site.
Teutoburg Forest
The Teutoburg Forest (Teutoburger Wald) is a 105 km forested ridge in northwest Germany, named for the battle of 9 CE in which Arminius destroyed three Roman legions.
Texada Island
Texada Island (Tla'amin: Si'yi yen) is the largest Gulf Island in the Strait of Georgia. It was a major early mining district known for copper and iron.
Texas Hill Country
The Texas Hill Country is a 25-county region of central Texas, the dissected limestone eastern edge of the Edwards Plateau bounded by the Balcones Escarpment, known for karst aquifers, Flash Flood Alley flooding, German heritage towns, and rapid growth.
Thabana Ntlenyana
Thabana Ntlenyana, meaning "beautiful little mountain" in Sesotho, is the highest mountain in northeastern Lesotho. It is also the highest point in the Drakensberg–Maloti system and southern Africa.
Tham Luang cave rescue
The Tham Luang cave rescue, also called the Thai cave rescue, freed a Thai youth soccer team trapped in a flooded cave for 18 days in 2018.
Thasos (Θάσος)
Thasos (Θάσος), also spelled Thassos, is the northernmost Greek island, off the Macedonian coast near Kavala. A Parian colony from the 7th century BC, it was famed for gold, silver, wine, and marble, and is reached by ferry from Keramoti or Kavala.
The Burren
The Burren, from Irish Boíreann meaning "a rocky place", is a glaciated karst landscape in County Clare, western Ireland, covering about 530 square kilometers of exposed limestone.
The Island of the Dolls
The Island of the Dolls (Isla de las Muñecas) is a chinampa on Laguna del Teshuilo in Xochimilco's canals, 28 km south of Mexico City, where caretaker Julián Santana Barrera hung hundreds of dolls over fifty years, legend says to appease a drowned girl's spirit.
The Last Descent
The Last Descent is a 2016 drama directed by Isaac Halasima about the 2009 Nutty Putty Cave death of John Edward Jones, who died trapped upside down after a failed pulley rescue; the cave was permanently sealed.
The Lizard
The Lizard (Cornish An Lysardh) is Cornwall's southernmost peninsula, mainland Britain's southern tip, a serpentinite ophiolite plateau with Cornish heath heathland, Bronze Age sites, Marconi's 1901 wireless station and Goonhilly Earth Station.
The Mall, London
The Mall, London: ceremonial road from Trafalgar Square via Admiralty Arch to Buckingham Palace, 0.93 km, red iron-oxide-pigmented tarmac since the 1950s; hosts royal processions, Changing the Guard, the London Marathon finish and 2012 Olympic road events.
The Ridgeway
The Ridgeway is an 87-mile (139 km) National Trail from Avebury, Wiltshire, to Ivinghoe Beacon, Buckinghamshire, following a chalk-hills route used for at least 5,000 years and often called Britain's oldest road.
The Storr
The Storr (An Stòr), Isle of Skye: landslip hill on the Trotternish escarpment, home to the 55-m Old Man of Storr pinnacle, 6.5 ka dated rockslide, and a Highland Council visitor site with paid parking.
The Sundarbans
The Sundarbans (Bengali: সুন্দরবন) is the world's largest contiguous mangrove forest, about 10,000 km² across the Ganges-Brahmaputra-Meghna delta in India and Bangladesh, a UNESCO World Heritage site and the only mangrove habitat of the Bengal tiger.
The Sunken City
The Sunken City is the ruins of a 1920s Point Fermin, San Pedro neighborhood destroyed by a landslide beginning in 1929; ground moved up to 11 inches per day, the cliff retreated 64 m in ~70 years, and the fenced site may reopen.
The Thumb
The Thumb is the peninsula of Michigan's Lower Peninsula northeast of a Bay City to Port Huron line, bordered by Lake Huron, Saginaw Bay, and the St. Clair River; a glacial interlobate upland and farming region with Port Huron its largest city.
The Twelve Apostles (Victoria)
The Twelve Apostles are limestone sea stacks, 40–70 m tall, off Port Campbell on Victoria's Great Ocean Road, Australia. Formerly the Sow and Piglets, named in the 1920s with nine stacks; eight remain after the 2005 collapse.
The Watchkeeper
The Watchkeeper (also Flat Isle, Isla Flat, Islote Vigía) is a low off-shore rock island in the South Shetland Islands at 62°18'S 59°49'W, north of Table Island; named by sealers in 1821-1822 and renamed by the Discovery Investigations in 1934-35.
The Wave (Arizona)
The Wave is a wind-eroded Navajo sandstone formation in Coyote Buttes North, Paria Canyon-Vermilion Cliffs Wilderness, Arizona-Utah, limited to 64 daily visitors via BLM Recreation.gov lotteries.
The World (جزر العالم) (archipelago)
The World (Juzur al-Ālam) is Nakheel's artificial archipelago of 260-300 islands shaped as a world map, 4 km off Dubai in the Persian Gulf, built from 320 million m³ of dredged sand by 2008 and developed since with The Heart of Europe resorts.
Theodolite Hill
Theodolite Hill is a 680 m (US record; UK record 775 m) hill in northeast Trinity Peninsula, Antarctica, at the SE corner of a plateau 5 mi west of Duse Bay, named by FIDS in 1946 as a theodolite survey station.
Therion (software)
Therion is an open-source GNU GPL cave-survey processing and cartography package by Martin Budaj and Stacho Mudrák, using .th/.th2 text files, Survex least-squares loop closure, and MetaPost/pdfTeX compilation to produce PDF/SVG cave atlases, GIS exports, and 3D models.
Thermal karst springs
A thermal karst spring is a spring discharging geothermally heated water from a carbonate karst aquifer, heated by deep circulation and often emerging along faults, as at Pamukkale, Turkey.