Ostalbkreis — district in eastern Baden-Württemberg, Germany Ostalbkreis Ostalbkreis is an administrative district in eastern Baden‑Württemberg, centered on Aalen, covering parts of the Swabian Jura with rivers Rems, Jagst and Kocher and a mix of indust…
Ostallgäu (rural district in Swabia, Bavaria) Ostallgäu Rural district in Swabia, Bavaria, Germany. Ostallgäu covers northern Alpine foothills, lakes and historic towns such as Füssen and Marktoberdorf; Kaufbeuren lies as an independent…
Östergötland Östergötland is a historical province in southern Sweden known for its broad plains (Östgötaslätten), medieval towns, lakes, and a mix of agriculture, industry and cultural heritag…
Östergötland County: region, history, economy and culture Östergötland County Overview of Östergötland County (Östergötlands län): geography, municipalities, history, economy, culture and notable features including Linköping and Norrköping.
Osterholz (district), Lower Saxony, Germany Osterholz Osterholz is a rural district (Landkreis) in Lower Saxony, Germany, north of Bremen; noted for its peat moors, small towns, cultural sites and links to the city of Bremen.
Osterode (district) Former rural district in the Harz region of Lower Saxony, Germany, centered on Osterode am Harz; merged into the Göttingen district in 2016. Known for its forested hills, tourism,…
Ostholstein (district), Schleswig-Holstein, Germany Ostholstein Ostholstein is a district in northern Germany on the Baltic coast. It includes coastal towns, islands and the hilly Holsteinische Schweiz region; the administrative seat is Eutin.
Ostprignitz-Ruppin (district) Ostprignitz-Ruppin Ostprignitz-Ruppin is a rural district in northwestern Brandenburg, Germany, centered on Neuruppin; known for lakes, forests, historic towns and a landscape shaped by rural agricul…
Ostra, Suceava County, Romania Ostra, Suceava Ostra is a rural commune in Suceava County, northeastern Romania. This article summarizes its setting, administrative role, landscape, historical context, economy and cultural surr…
Ostrobothnia (region) Ostrobothnia is a coastal region of western Finland, known for its flat plains, archipelago, and a strong Swedish-speaking community. It combines agriculture, industry, bilingual c…
Ostvorpommern — former district in Mecklenburg-Western Pomerania Ostvorpommern Ostvorpommern was a rural district in eastern Mecklenburg-Western Pomerania, Germany, surrounding but not including the Hanseatic city of Greifswald. It combined coastal and inland…
Otjozondjupa Region (Namibia) Otjozondjupa Region Otjozondjupa is a north‑central region of Namibia with its capital at Otjiwarongo. It includes the Waterberg Plateau and is an agricultural, wildlife and service centre divided int…
Ottauquechee River A roughly 40-mile river in central Vermont that rises in the Green Mountains, flows east through Rutland and Windsor counties, forms Quechee Gorge, and joins the Connecticut River…
Ottawa County, Kansas Ottawa County is a small, rural county in north-central Kansas with the county seat at Minneapolis. It is named for the Ottawa people and has an economy centered on agriculture and…
Ottawa River Major river forming much of the boundary between Ontario and Quebec, Canada; important for ecology, history, hydroelectricity, navigation and recreation.
Otter Tail County, Minnesota County in west-central Minnesota with Fergus Falls as its seat. Noted for thousands of lakes, outdoor recreation and agriculture; largest Minnesota county by land area. Population…
Ouachita Mountains A low, east–west mountain range spanning west-central Arkansas and southeastern Oklahoma, notable for folded Paleozoic geology, mixed pine–oak forests, recreation, and unique regio…
Ouaddaï Prefecture (former administrative division of Chad) Ouaddaï (prefecture) Former prefecture in eastern Chad centered on Abéché; historically connected to the Wadai Sultanate and reorganized into modern regions during Chad's 2002 administrative reform.
Ouaddaï Region — eastern Chad Ouaddaï Region Ouaddaï is an eastern region of Chad centered on Abéché. It was the core of the historic Ouaddai Empire and today is noted for its highlands, trade routes, and complex cultural and…
Ouaka (prefecture of the Central African Republic) Ouaka Ouaka is a central prefecture of the Central African Republic with its capital at Bambari. It is named for the Ouaka River and borders the Democratic Republic of the Congo; the reg…
Ouanne — commune in Yonne, Bourgogne-Franche-Comté, France Ouanne Ouanne is a small rural commune in the Yonne department of central France, named for the Ouanne River and characterised by agricultural landscapes, local heritage and quiet village…
Ouargla Province (Wilaya of Ouargla, Algeria) Ouargla Province Ouargla Province is an administrative region in eastern Algeria encompassing Sahara desert, the Issaouane Erg, oilfields around Hassi Messaoud, and oasis towns such as Ouargla and…
Ouch, Lower Dir (Khyber Pakhtunkhwa, Pakistan) Ouch, Lower Dir Ouch is a town in Lower Dir District of Khyber Pakhtunkhwa, Pakistan, serving as a local market and service centre for surrounding rural communities with Pashtun cultural roots.
Ouémé Department, Benin Ouémé Department Ouémé is a coastal department in southeastern Benin centered on Porto-Novo. It features riverine and lagoon landscapes, nine communes, a mixed economy of agriculture and fishing, a…
Ouest (department, Haiti) Ouest (department) Ouest is one of Haiti's ten departments, home to the capital Port-au-Prince, the island of Gonâve, and a large share of the country's population, coastline, and political instituti…
Ouest Lausannois District (Canton of Vaud, Switzerland) Ouest Lausannois District Administrative district west of Lausanne in the canton of Vaud, centered on Renens; suburban, multilingual, and connected to the Lausanne metropolitan area by public transport.
Ouham (prefecture of the Central African Republic) Ouham Ouham is a prefecture in the northwestern Central African Republic with capital Bossangoa. It is a largely rural region defined by savanna landscapes, river valleys and a history s…
Ouham-Pendé: Prefecture in the northwestern Central African Republic Ouham-Pendé Ouham-Pendé is a northwestern prefecture of the Central African Republic with capital Bozoum. It borders Cameroon and Chad and is shaped by rural agriculture, cross-border ties, an…
Oulchy-le-Château Oulchy-le-Château is a small commune in the Aisne department of northern France (historically Picardie). This article covers its location, governance, history, local sites and pres…
Oulujärvi — the Kainuu Sea (large lake in Finland) Oulujärvi Oulujärvi, nicknamed 'Kainuun meri', is Finland's fifth-largest lake. Noted for its wide open waters and archipelago, it is a focal point for local culture, recreation and diverse…
Oum El Bouaghi Province — northeastern Algerian province overview Oum El Bouaghi Province Overview of Oum El Bouaghi Province in northeastern Algeria: geography, administration, history, economy, and cultural notes with links to provincial and national pages.
Our (river) The Our is a small Western European river running through Belgium, Luxembourg and Germany. It is a tributary of the Sauer and forms parts of international borders, known for its sc…
Outback (Australia): remote interior landscapes, people and uses Outback The Outback is Australia's vast, sparsely populated interior—an arid and semi-arid region known for rangelands, mining, tourism and deep Indigenous cultural connections.
Outeniqua Mountains — South African range on the Garden Route Outeniqua Mountains A coastal mountain range in southern South Africa, the Outeniqua Mountains form part of the Cape Fold Belt and the scenic Garden Route, noted for fynbos, Afromontane forest, histor…
Outer Banks (North Carolina): Barrier Islands, History, and Ecology Outer Banks The Outer Banks are a 200‑mile chain of narrow barrier islands off North Carolina’s coast, known for shifting dunes, wildlife, maritime history, and tourism including the Wright Br…
Outer Hebrides (Western Isles): islands, culture, history, and wildlife Outer Hebrides Remote archipelago off western Scotland, the Outer Hebrides (Western Isles) are known for Gaelic culture, crofting, rugged landscapes, seabirds, peatlands and ferry links connectin…
Outriaz — commune in Ain, Auvergne‑Rhône‑Alpes, eastern France Outriaz Outriaz is a small rural commune in the Ain department of Auvergne‑Rhône‑Alpes in eastern France. Summary of geography, administration, history, economy and practical visitor infor…
Overijssel: Dutch province east of the IJssel Overijssel Overijssel is a province in eastern Netherlands with the capital Zwolle and largest city Enschede. It features historic towns, river landscapes, the Twente region, agriculture, ind…
Overseas departments of France French overseas departments are integral parts of France located outside Europe. They share French law and citizenship, are in the EU and use the euro, but retain distinctive local…
Overseas France (France d'outre-mer) Overseas France Territories of the French Republic located outside Europe, with varied legal statuses, geographic distribution, representation in French institutions, and strategic, cultural, and…
Oxbow Lake: formation, characteristics, and ecological importance Oxbow lake An oxbow lake is a crescent-shaped body of water formed when a river meander is cut off. This article explains how oxbow lakes form, their features, ecological roles, and interacti…
Oxfordshire Oxfordshire (Oxon) is a ceremonial county in South East England centred on the university city of Oxford. It combines historic towns, rural landscapes, research and publishing, mot…
Ozama River (Dominican Republic) Ozama River Major river that flows into the Caribbean at Santo Domingo. About 148 km long with a 2,685 km² basin; historically central to the capital and now subject to navigation, pollution a…
Ozark–St. Francis National Forest A pair of U.S. National Forest units in Arkansas — the upland Ozark National Forest and the lowland St. Francis National Forest — managed for conservation, recreation and natural r…
Ozarks (Ozark Plateau) — geography, geology, and cultural history Ozarks Highland region of the central United States spanning Missouri, Arkansas, Oklahoma and Kansas, known for its plateau-and-mountain topography, karst features, forests, and distinct…
Ozon (Ardèche) — commune in southern France Ozon, Ardèche Ozon is a small French commune in the Ardèche department, known for its rural setting, local administration, and regional cultural and natural ties in southern France.
Pabna District — overview, geography, history and significance Pabna District Pabna is a district in north‑western Bangladesh, the southernmost district of Rajshahi Division. It is known for agriculture, historic peasant movements, river transport and region…
Pacific coast: definition, features, history and significance Pacific coast The Pacific coast is any shoreline along the Pacific Ocean. This article explains its physical traits, ecosystems, human uses, history, and how it differs from other oceanic coasts…
