#mountain
- Abrud — A town in Alba County, Transylvania, Romania, located in the Abrud Depression within the Apuseni Mountains, on the river of the same name; it is an ancient mining center known since the Roman era as Abruttus, closely tied to gold extraction and historical events like the Revolt of Horea, Cloșca, and Crișan and the 1848 Revolution.
- Acanthus montanus — A species of evergreen perennial subshrub with partially woody bases, belonging to the Acanthus genus and Acanthaceae family, native to the tropical rainforests and shaded mountainous areas of West and Central Africa. It is distinguished by its large, deeply lobed, and heavily undulated leaves, whose margins are armed with sharp, rigid spines. Its inflorescences are spectacular erect terminal spikes made of white, pale pink, or light lilac tubular flowers, valued in horticulture for its exotic and sculptural appearance.
- Acrophilous — Regarding plants or organisms; growing, developing, or living at high altitudes, in alpine or mountainous regions; alticolous. As a noun, it denotes an organism or individual oriented toward alpine heights.
- Alpine plant — A plant structurally and physiologically adapted to live and grow at high altitudes, within the upper alpine zone or on rocky mountain ridges, displaying specific dwarf or pubescent traits.
- Adamawa — A large geographical, historical, and administrative region located in Central and West Africa, extending across the territory of Nigeria (as a federal state) and Cameroon (as an administrative region and mountainous plateau). The name originates from the Fulani leader Modibo Adama, who founded an emirate in this mountainous and fertile area during the 19th century.
- Adenostyles — A genus of perennial herbaceous plants belonging to the Asteraceae (Compositae) family, structurally distributed throughout the mountainous and subalpine regions of Europe and Asia Minor. These plants are recognized for their large, often cordate or reniform leaves with dentate margins, and for their compound inflorescences of small flower heads with pink, purple, or white tubular florets, developing optimally in moist, rocky habitats or at the edge of coniferous forests.
- Adenostyles glabra — A species of perennial herbaceous plant in the family Asteraceae, structurally related to alpine colt's-foot, remarkable for having completely smooth, hairless (glabrous) vegetative organs (stems and leaves); its cordate-reniform leaves feature prominent teeth, and the pink-violet flower heads are arranged in a loose terminal corymb. It is a plant specific to limestone mountain regions and screes in Central and Southern Europe.
- Adirondack — A mountain massif and large natural park located in northeastern New York State, United States of America, structurally characterized by a geological dome shape with thousands of lakes, rivers, and forested peaks; in the history of design and universal culture, the term designates an iconic style of outdoor furniture (specifically the Adirondack chair, featuring a slatted slanted back and very wide armrests) and a rustic architectural style specific to American mountain lodges.
- Adlumia fungosa — A climbing, biennial herbaceous plant species, the primary representative of the genus Adlumia in the family Fumariaceae, native to the wooded and rocky areas of North America. It is characterized by divided, fern-like leaves and pendulous inflorescences with delicate, elongated or spongy flowers, with colors ranging from pale pink to white.
- Agapanthus campanulatus — A species of herbaceous perennial plants in the genus Agapanthus, native to the moist mountainous regions of South Africa (such as the Drakensberg Mountains), characterized by deciduous leaves and long, bell-shaped (campanulate) flowers of pale blue to azure-blue color. Structurally, its adaptation to high altitudes grants it a much higher frost resistance compared to evergreen species, being intensively used in hybridization.
- Agăș — The name of a commune and its administrative center located in Bacău County, in the Moldavia region of Romania, situated along the Trotuș River valley between the Tarcău and Ciuc mountains. The locality is renowned for its spectacular mountain landscapes, rich forestry resources, and traditional architecture specific to the sub-Carpathian area, holding a history tied to timber exploitation and trans-Carpathian trade routes.
- Aghion Oros — The official Greek name for Mount Athos, situated on the eastern peninsula of Halkidiki; it represents an autonomous monastic state under Greek sovereignty, globally recognized as the spiritual center of Eastern Orthodoxy, housing twenty sovereign monasteries and numerous historical hermitages where access for women is forbidden.
- Alpine bentgrass — A species of perennial herbaceous plants within the genus Agrostis, family Poaceae, structurally adapted to high mountain and alpine climates. This grass grows in small, dense tufts on alpine meadows, rocky ridges, or screes, playing a crucial ecological role in preventing soil erosion in high-altitude zones and serving as forage for wild alpine fauna.
- Rock bentgrass — A species of perennial herbaceous plants within the genus Agrostis, family Poaceae, native to the mountainous regions of Europe (including the Carpathian Mountains). This grass grows in low, dense tufts on stony substrates, cliffs, screes, and alpine meadows with shallow, acidic soils; it is highly resistant to frost, strong winds, and drought, playing a major ecological role in stabilizing high-altitude soils.
- Agung — An active stratovolcano located on the island of Bali, Indonesia, representing the highest geographical point of the island, with an elevation exceeding three thousand meters. In local Indonesian culture and Balinese Hinduism, this mountain is considered deeply sacred, viewed as the central axis of the universe and the dwelling place of the gods, hosting the famous Pura Besakih temple complex on its slopes.
- Ahaggar — A mountainous massif of volcanic origin located in the center of the Sahara Desert, in southern Algeria, characterized by dramatic landscapes made of steep peaks, high plateaus, and spectacular basalt formations. Also known as the Hoggar Mountains, this geographical hub is historically inhabited by Tuareg populations and contains priceless prehistoric archaeological remains, including famous rock paintings.
- Yodeling sound — The act of traditionally chanting or yodeling and its result; a long, prolonged, and drawn-out cry produced using an archaic vocal technique; traditional mountain hollering used as an echo or call. As a participle, it describes a sound or song performed in this manner.
- Air — A proper noun of international resonance utilized across various cultural and geographical domains; it denotes the globally recognized French downtempo/ambient electronic music duo, the Saharan mountain massif and cultural plateau in Niger (Aïr Mountains, inscribed on the UNESCO World Heritage list), as well as a core branding element for airlines or advanced technologies. Within linguistic and encyclopedic contexts, the word carries meanings tied to concepts of immateriality, structural elevation, or modern artistic fluidity.
- Ajmer — A major historic city located in the Rajasthan state of northwestern India, surrounded by the Aravalli mountains. Founded in the 7th century by the Chauhan dynasty, the city is globally renowned as an important pilgrimage center, housing the famous Sufi shrine Dargah Sharif of the mystic saint Moinuddin Chishti; it also serves as a major railway hub and is situated close to the holy town of Pushkar, famous for its Hindu temples.
- Ala Shan — A proper noun designating a massive desert region and a correlated mountain range located in the western part of the Inner Mongolia Autonomous Region of the People's Republic of China, forming a major structural subdivision within the extended ecological system of the Gobi Desert; it also represents the name of a vast administrative league (Alxa) managing this arid territory. This geographical plateau of outstanding geoclimatic importance is structurally characterized by giant sand dunes among the highest on Earth, isolated interdunal saline lakes, and fragile ecosystems legally protected against accelerated desertification in Central Asia.