3,546 articles
George V Coast
George V Coast, East Antarctic coastal region between Point Alden (142°02′E) and Cape Hudson (153°45′E), named by Mawson's 1911–14 expedition for King George V; home of Mertz and Ninnis glaciers.
Ghamubar Zom
Ghamubar Zom (Dhuli Chhish), 6,518 m ultra in Pakistan's Hindu Raj, Ghizer District; five summits, main summit first climbed 1973 by Italians, Ghamubar Zom V first climbed 2023 by Japanese trio.
Ghegham Volcanic Ridge
Ghegham (Gegham) Volcanic Ridge, Geghama lerner, is a Pleistocene-Holocene monogenetic volcanic field in west-central Armenia between Yerevan and Lake Sevan, with 127 centers, Azhdahak 3,597 m, obsidian domes, petroglyphs, and dragon stones.
Giant's Causeway
Giant's Causeway, County Antrim, Northern Ireland: about 40,000 polygonal basalt columns formed by Palaeogene volcanism around 60 million years ago; UNESCO World Heritage Site since 1986, linked by legend to Fionn mac Cumhaill.
Gibbs Island
Gibbs Island (Ostrov Rozhnova) is a ~22 km² island in the South Shetland Islands, Antarctica, 25 km southwest of Elephant Island, known for its dunite-serpentinite mantle complex and large chinstrap penguin, macaroni penguin, and southern fulmar colonies.
Gibson Desert
The Gibson Desert is an arid desert of about 156,000 km² in central Western Australia, fifth largest of Australia's mainland deserts, named for explorer Alfred Gibson, with mulga-spinifex country, Aboriginal land, and no commercial grazing.
Gilbert Islands
Gilbert Islands: 16 low-lying coral atolls in central Micronesia, westernmost group of Kiribati (independent 1979), including capital atoll Tarawa and outlier Banaba; over 90% of Kiribati's population lives there.
Gilf Kebir
Gilf Kebir (Gilf el-Kebir), a large Nubia sandstone plateau in far southwest Egypt near the Libyan border, discovered by Prince Kamal el-Din Hussein in 1925-1926, known for wadis, rock art, and Mars-analogue landforms.
Gilford Island
Gilford Island, a 388 sq km island in the Broughton Archipelago, British Columbia, between Tribune Channel and Knight Inlet; home of Gwa'yas'dums, main village of the Kwikwasut'inuxw Haxwa'mis First Nation.
Gili Islands
Gili Islands (Gili Tramena): Gili Trawangan, Gili Meno, Gili Air, three islands off north-west Lombok, Indonesia, in the Gili Matra marine park; Sasak 'gili' means island; car-free, dive-tourism economy of about 1 million visitors a year.
Gili Santigi
Gili Santigi: a name plotted on tourist maps of the Gili Islands, Lombok, Indonesia; also a Gili Air home stay, the former name of Pantai Senggigi, and the plant Pemphis acidula.
Gillock Island
Gillock Island is an ice-covered island on the eastern side of the Amery Ice Shelf, East Antarctica, named for USN Lieutenant Robert A. Gillock in 1952.
Girnar (ગીરનાર)
Girnar (ગીરનાર), also Girinagar or Revatak Parvata, is a sacred five-peak mountain group near Junagadh, Gujarat, holy to Hindus and Jains as Neminatha's nirvana site, with about 9,999 steps, Jain temples, Ashoka's rock edicts, and a 2.12 km ropeway.
Glacial landform
Glacial landforms are surface features created by glacier ice through erosion during advances and deposition during retreat, including cirques, U-shaped valleys, moraines, drumlins, eskers, and sandur, studied within glacial geomorphology.
Glacier cave exploration and study
Glacier caves, also called glaciospeleology subjects, are ice-walled caves formed inside glaciers by meltwater and airflow, distinct from rock ice caves; studied for englacial hydrology, cave climatology, and cave ice climate archives.
Glacier mass balance
Glacier mass balance is the mass a glacier gains or loses, usually measured annually in meters water equivalent, and the key link between glaciers, climate, and sea level.
Glacier Peak (mountain)
Glacier Peak is a dacitic stratovolcano, 3,213 m, in Washington's Glacier Peak Wilderness, the state's most remote active volcano, with six postglacial eruptive episodes and Very High threat potential.
Glacier surge
A glacier surge is a temporary period of rapid ice flow, during which a glacier speeds up by up to two orders of magnitude and often advances its front.
Gladsheim Peak
Gladsheim Peak (2,830 m) is the highest summit of the Valhalla Range in the Selkirk Mountains, British Columbia, named in 1900 for Odin's Norse hall, with its first ascent by the west ridge in 1963.
Glen
Glen: a deep, narrow mountain valley, especially in Scotland or Ireland, from Gaelic gleann; distinct from a strath; famous examples include Glen Coe, Glen Affric, and the Great Glen.
Glen Coe
Glen Coe (Gleann Comhann) is a glacial valley in Scotland's Grampian Highlands, site of a 420-million-year-old caldera volcano, a classical geology locality, and the 1692 Massacre of Glencoe.
Global Underwater Explorers
Global Underwater Explorers (GUE), founded 1998 in High Springs, Florida, is a 501(c)(3) nonprofit scuba training, exploration, and conservation organization known for standardized DIR-based diver training, the Fundamentals course, and Project Baseline.
Glorioso Islands
Glorioso Islands (îles Glorieuses): French Scattered Islands coral archipelago in the northern Mozambique Channel, TAAF fifth district, disputed by Madagascar and the Comoros, ~7 km² land with a ~48,000 km² EEZ.
Gobi Desert (Говь)
The Gobi Desert (Говь) is a vast cold desert of southern Mongolia and northern China, averaging about 2.3 million km² and mostly rocky rather than sandy.
Golem Korab / Maja e Korabit
Golem Korab (Maja e Korabit, Голем Кораб) is a 2,764 m border peak, the highest point of both Albania and North Macedonia, in the Korab range of the western Balkans, climbed from Radomirë or Strezimir.
Goli Otok
Goli Otok (Barren Island), Croatian Adriatic island between Rab, Sveti Grgur, and Prvić; Yugoslavia's main political prison and forced labor camp, 1949–1988, holding about 13,000 Stalinist suspects; never memorialized.
Gomukh (गोमुख)
Gomukh (गोमुख), also Gaumukh, is the snout of the Gangotri Glacier in Uttarakhand, India, where the Bhagirathi River emerges; measured retreat slowed from 38 m/yr in the 1970s to about 10 m/yr by 2015.
Goodenough Island
Goodenough Island is a roughly circular volcanic island in Milne Bay Province, Papua New Guinea, and the westernmost of the three D'Entrecasteaux Islands off the New Guinea mainland.
Gora Alagordy (mountain, China)
Köketau is a name for Gora Alagordy, also called Besbakan and Semenov-Tian-Shansky Peak, a 4,622 m mountain on the China–Kazakhstan border and the highest point of the Dzungarian Alatau.
Gora Belukha (mountain, Russia)
Gora Belukha (Гора Белуха), Mount Belukha or Muztau, is the highest peak of the Altai Mountains and Siberia at 4,506–4,509 m, a twin-summed glacier massif on the Russia–Kazakhstan border first climbed in 1914.