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The Geography Portal

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Physical map of Earth with political borders as of 2016

Geography (from Greek: γεωγραφία, geographia, literally "earth description") is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of the Earth and planets. The first person to use the word γεωγραφία was Eratosthenes (276–194 BC). Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be.

Geography is often defined in terms of two branches: human geography and physical geography. Human geography is concerned with the study of people and their communities, cultures, economies, and interactions with the environment by studying their relations with and across space and place. Physical geography is concerned with the study of processes and patterns in the natural environment like the atmosphere, hydrosphere, biosphere, and geosphere.

The four historical traditions in geographical research are spatial analyses of natural and the human phenomena, area studies of places and regions, studies of human-land relationships, and the Earth sciences. Geography has been called "the world discipline" and "the bridge between the human and the physical sciences".

Featured article

Featured articles in geography

Core Western Ganga Territory

Western Ganga was an important ruling dynasty of ancient Karnataka in India which lasted from about 350 to 1000 CE. They are known as 'Western Gangas' to distinguish them from the Eastern Gangas who in later centuries ruled over Kalinga (modern Odisha). The general belief is that the Western Gangas began their rule during a time when multiple native clans asserted their freedom due to the weakening of the Pallava empire in South India, a geo-political event sometimes attributed to the southern conquests of Samudra Gupta. The Western Ganga sovereignty lasted from about 350 to 550 CE, initially ruling from Kolar and later, moving their capital to Talakadu on the banks of the Kaveri River in modern Mysore district.

After the rise of the imperial Chalukyas of Badami, the Gangas accepted Chalukya overlordship and fought for the cause of their overlords against the Pallavas of Kanchi. The Chalukyas were replaced by the Rashtrakutas of Manyakheta in 753 CE as the dominant power in the Deccan. After a century of struggle for autonomy, the Western Gangas finally accepted Rashtrakuta overlordship and successfully fought alongside them against their foes, the Chola Dynasty of Tanjavur. In the late 10th century, north of Tungabhadra river, the Rashtrakutas were replaced by the emerging Western Chalukya Empire and the Chola Dynasty saw renewed power south of the Kaveri river. The defeat of the Western Gangas by Cholas around 1000 resulted in the end of the Ganga influence over the region.
Colton Point State Park is a 368-acre (149 ha) Pennsylvania state park in Tioga County, Pennsylvania, in the United States. It is on the west side of the Pine Creek Gorge, also known as the Grand Canyon of Pennsylvania, which is 800 feet (240 m) deep and nearly 4,000 feet (1,200 m) across at this location. The park extends from the creek in the bottom of the gorge up to the rim and across part of the plateau to the west. Colton Point State Park is known for its views of the Pine Creek Gorge, and offers opportunities for picnicking, hiking, fishing and hunting, whitewater boating, and camping. Colton Point is surrounded by Tioga State Forest and its sister park, Leonard Harrison State Park, on the east rim. The park is on a state forest road in Shippen Township 5 miles (8 km) south of U.S. Route 6.

Pine Creek flows through the park and has carved the gorge through five major rock formations from the Devonian and Carboniferous periods. Native Americans once used the Pine Creek Path along the creek. The path was later used by lumbermen, and then became the course of a railroad from 1883 to 1988. Since 1996, the 62-mile (100 km) Pine Creek Rail Trail has followed the creek through the gorge. The Pine Creek Gorge was named a National Natural Landmark in 1968 and is also protected as a Pennsylvania State Natural Area and Important Bird Area, while Pine Creek is a Pennsylvania Scenic and Wild River. The gorge is home to many species of plants and animals, some of which have been reintroduced to the area.
Oregon Caves National Monument and Preserve is a protected area in the northern Siskiyou Mountains of southwestern Oregon in the United States. The 4,554-acre (1,843 ha) park, including the marble cave, is 20 miles (32 km) east of Cave Junction, on Oregon Route 46. The protected area, managed by the National Park Service (NPS), is in southwestern Josephine County, near the Oregon–California border.

Elijah Davidson, a resident of nearby Williams, discovered the cave in 1874. Over the next two decades, private investors failed in efforts to run successful tourist ventures at the publicly owned site. After passage of the Antiquities Act by the United States Congress, in 1909 President William Howard Taft established Oregon Caves National Monument, to be managed by the United States Forest Service (USFS). The growing popularity of the automobile, construction of paved highways, and promotion of tourism by boosters from Grants Pass led to large increases in cave visitation during the late 1920s and thereafter. Among the attractions at the remote monument is the Oregon Caves Chateau, a six-story hotel built in a rustic style in 1934. It is a National Historic Landmark and is part of the Oregon Caves Historic District within the monument. The NPS, which assumed control of the monument in 1933, offers tours of the cave from mid-April through early November. In 2014, the protected area was expanded by about 4,000 acres (1,600 ha) and re-designated a National Monument and Preserve. At the same time, the segment of the creek that flows through the cave was renamed for the mythological Styx and added to the National Wild and Scenic Rivers System.
Tiruchirappalli (pronunciation) (formerly Trichinopoly in English), also called Tiruchi or Trichy, is a major tier II city in the Indian state of Tamil Nadu and the administrative headquarters of Tiruchirappalli district. It is the fourth largest city as well as the fourth largest urban agglomeration in the state. Located 322 kilometres (200 mi) south of Chennai and 374 kilometres (232 mi) north of Kanyakumari, Tiruchirappalli sits almost at the geographic centre of the state. The Cauvery Delta begins 16 kilometres (9.9 mi) west of the city where the Kaveri river splits into two, forming the island of Srirangam, which is now incorporated into the Tiruchirappalli City Municipal Corporation. The city occupies an area of 167.23 square kilometres (64.57 sq mi) and had a population of 916,857 in 2011.

Tiruchirappalli is one of the oldest inhabited cities in India. Its recorded history begins in the 3rd century BC, when it was under the rule of the Cholas. The city has also been ruled by the Pallavas, Pandyas, Vijayanagar Empire, Nayak Dynasty, the Carnatic state and the British. The most prominent historical monuments in Tiruchirappalli include the Rockfort, the Ranganathaswamy temple at Srirangam and the Jambukeswarar temple at Thiruvanaikaval. The archaeologically important town of Uraiyur, capital of the Early Cholas, is now a neighbourhood in Tiruchirappalli. The city played a critical role in the Carnatic Wars (1746–1763) between the British and the French East India companies.
Storming of the breach by Prussian grenadiers, Carl Röchling

At the Battle of Leuthen, fought on 5 December 1757, Frederick the Great's Prussian army used maneuver and terrain to decisively defeat a larger Austrian force commanded by Prince Charles of Lorraine and Count Leopold Joseph von Daun. The victory ensured Prussia's control of Silesia during the Third Silesian War (part of the Seven Years' War).

The battle was fought at the Silesian town of Leuthen, 10 kilometers (6 mi) northwest of Breslau (Wrocław), now Lutynia in present-day Poland. By exploiting the training of his troops and his superior knowledge of the terrain, Frederick created a diversion at one end of the battlefield, and moved most of his small army behind a series of low hillocks. The surprise attack in oblique order on the unsuspecting Austrian flank baffled Prince Charles; the Prince took several hours to realize that the main action was to his left, and not to his right. Within seven hours, the Prussians destroyed the Austrian force, erasing any advantage the Austrians had gained throughout the campaigning in the preceding summer and autumn. Within 48 hours, Frederick had laid siege to Breslau, which resulted in that city's surrender on 19–20 December.
Skeleton at the Finnish Museum of Natural History

Steller's sea cow (Hydrodamalis gigas) is an extinct sirenian described by Georg Wilhelm Steller in 1741. At that time, it was found only around the Commander Islands in the Bering Sea between Alaska and Russia; its range was more extensive during the Pleistocene epoch, and it is possible that the animal and humans previously interacted. Some 18th-century adults would have reached weights of 8–10 t (8.8–11.0 short tons) and lengths up to 9 m (30 ft).

It was a part of the order Sirenia and a member of the family Dugongidae, of which its closest living relative, the 3 m (9.8 ft) long dugong (Dugong dugon), is the sole living member. It had a thicker layer of blubber than other members of the order, an adaptation to the cold waters of its environment. Its tail was forked, like that of whales or dugongs. Lacking true teeth, it had an array of white bristles on its upper lip and two keratinous plates within its mouth for chewing. It fed mainly on kelp, and communicated with sighs and snorting sounds. Evidence suggests it was a monogamous and social animal living in small family groups and raising its young, similar to modern sirenians.
Mauna Kea (/ˌmɔːnə ˈkeɪ.ə/ or /ˌmaʊnə ˈkeɪ.ə/, Hawaiian: [ˈmɐwnə ˈkɛjə]) is a dormant volcano on the island of Hawaiʻi. Its peak is 4,207.3 m (13,803 ft) above sea level, making it the highest point in the state of Hawaiʻi. Most of the volcano is underwater, and when measured from its underwater base, Mauna Kea is the tallest mountain in the world, measuring 10,200 m (33,500 ft) in height. Mauna Kea is about a million years old, and has thus passed the most active shield stage of life hundreds of thousands of years ago. In its current post-shield state, its lava is more viscous, resulting in a steeper profile. Late volcanism has also given it a much rougher appearance than its neighboring volcanoes due to construction of cinder cones, decentralization of its rift zones, glaciation on its peak, and weathering by the prevailing trade winds. Mauna Kea last erupted 6,000 to 4,000 years ago and is now considered dormant. The peak is about 38 m (125 ft) higher than Mauna Loa, its more massive neighbor.

In Hawaiian religion, the peaks of the island of Hawaiʻi are sacred. An ancient law allowed only high-ranking aliʻi to visit its peak. Ancient Hawaiians living on the slopes of Mauna Kea relied on its extensive forests for food, and quarried the dense volcano-glacial basalts on its flanks for tool production. When Europeans arrived in the late 18th century, settlers introduced cattle, sheep and game animals, many of which became feral and began to damage the volcano's ecological balance. Mauna Kea can be ecologically divided into three sections: an alpine climate at its summit, a Sophora chrysophylla–Myoporum sandwicense (or māmane–naio) forest on its flanks, and an Acacia koa–Metrosideros polymorpha (or koa–ʻōhiʻa) forest, now mostly cleared by the former sugar industry, at its base. In recent years, concern over the vulnerability of the native species has led to court cases that have forced the Hawaiʻi Department of Land and Natural Resources to eradicate all feral species on the volcano.
Henry in full regalia (depicted in the 11th-century Evangelion of Saint Emmeram's Abbey)

Henry IV (German: Heinrich IV; 11 November 1050 – 7 August 1106) was Holy Roman Emperor from 1084 to 1105, King of Germany from 1054 to 1105, King of Italy and Burgundy from 1056 to 1105, and Duke of Bavaria from 1052 to 1054. He was the son of Henry III, Holy Roman Emperor—the second monarch of the Salian dynasty—and Agnes of Poitou. After his father's death on 5 October 1056, Henry was placed under his mother's guardianship. She made grants to German aristocrats to secure their support. Unlike her late husband, she could not control the election of the popes, thus the idea of the "liberty of the Church" strengthened during her rule. Taking advantage of her weakness, Archbishop Anno II of Cologne kidnapped Henry in April 1062. He administered Germany until Henry came of age in 1065.

Henry endeavoured to recover the royal estates that had been lost during his minority. He employed low-ranking officials to carry out his new policies, causing discontent in Saxony and Thuringia. Henry crushed a riot in Saxony in 1069 and overcame the rebellion of the Saxon aristocrat Otto of Nordheim in 1071. The appointment of commoners to high office offended German aristocrats, and many of them withdrew from Henry's court. He insisted on his royal prerogative to appoint bishops and abbots, although the reformist clerics condemned this practice as simony (a forbidden sale of church offices). Pope Alexander II blamed Henry's advisors for his acts and excommunicated them in early 1073. Henry's conflicts with the Holy See and the German dukes weakened his position and the Saxons rose up in open rebellion in the summer of 1074. Taking advantage of a quarrel between the Saxon aristocrats and peasantry, he forced the rebels into submission in October 1075.
Expedition commander Carsten Borchgrevink taking a theodolite reading in front of the Southern Cross, 1899

The Southern Cross Expedition, otherwise known as the British Antarctic Expedition, 1898–1900, was the first British venture of the Heroic Age of Antarctic Exploration, and the forerunner of the more celebrated journeys of Robert Falcon Scott and Ernest Shackleton. The brainchild of the Anglo-Norwegian explorer Carsten Borchgrevink, it was the first expedition to over-winter on the Antarctic mainland, the first to visit the Great Ice Barrier—later known as the Ross Ice Shelf—since Sir James Clark Ross's groundbreaking expedition of 1839 to 1843, and the first to effect a landing on the Barrier's surface. It also pioneered the use of dogs and sledges in Antarctic travel.

The expedition was privately financed by the British magazine publisher Sir George Newnes. Borchgrevink's party sailed in the Southern Cross, and spent the southern winter of 1899 at Cape Adare, the northwest extremity of the Ross Sea coastline. Here they carried out an extensive programme of scientific observations, although opportunities for inland exploration were restricted by the mountainous and glaciated terrain surrounding the base. In January 1900, the party left Cape Adare in Southern Cross to explore the Ross Sea, following the route taken by Ross 60 years earlier. They reached the Great Ice Barrier, where a team of three made the first sledge journey on the Barrier surface, during which a new Farthest South record latitude was established at 78° 50′S.
Trafford Town Hall

Trafford is a metropolitan borough of Greater Manchester, England, with an estimated population of 235,493 in 2017. It covers 41 square miles (106 km²) and includes the area of Old Trafford and the towns of Altrincham, Stretford, Urmston, Timperley, Partington and Sale. The borough was formed in 1974 as a merger of the municipal boroughs of Altrincham, Sale, and Stretford, the urban districts of Bowdon, Hale and Urmston and part of Bucklow Rural District. The River Mersey flows through the borough, separating North Trafford from South Trafford, and the historic counties of Lancashire and Cheshire.

There is evidence of Neolithic, Bronze Age, and Roman activity in the area, two castles – one of them a Scheduled Ancient Monument – and over 200 listed buildings. In the late 19th century, the population rapidly expanded with the arrival of the railway. Trafford is the home of Altrincham Football Club, Trafford Football Club, Manchester United F.C., The Trafford Centre and Lancashire County Cricket Club and since 2002 the Imperial War Museum North.
Dunnottar Castle in the Mearns occupies one of the best defensive locations in Great Britain. The site was in use throughout the High Middle Ages, and the castle itself dates to the fourteenth century.

The High Middle Ages of Scotland encompass Scotland in the era between the death of Domnall II in 900 AD and the death of King Alexander III in 1286, which was an indirect cause of the Wars of Scottish Independence.

At the close of the ninth century, various competing kingdoms occupied the territory of modern Scotland. Scandinavian influence was dominant in the northern and western islands, Brythonic culture in the southwest, the Anglo-Saxon or English Kingdom of Northumbria in the southeast and the Pictish and Gaelic Kingdom of Alba in the east, north of the River Forth. By the tenth and eleventh centuries, northern Great Britain was increasingly dominated by Gaelic culture, and by the Gaelic regal lordship of Alba, known in Latin as either Albania or Scotia, and in English as "Scotland". From its base in the east, this kingdom acquired control of the lands lying to the south and ultimately the west and much of the north. It had a flourishing culture, comprising part of the larger Gaelic-speaking world and an economy dominated by agriculture and trade.
Navenby village from the Viking Way

Navenby /ˈneɪvənbi/ is a village and civil parish in Lincolnshire, England. Lying 8 miles (13 km) south from the county town of Lincoln and 9 miles (14 km) north-northwest from Sleaford, Navenby had a population of 2,128 at the time of the 2011 census and is a dormitory village for Lincoln. It forms part of the North Kesteven local government district and, in March 2011, it was named as the 'Best Value Village' in England following a national survey.

A Bronze Age cemetery and the remains of an Iron Age settlement have been discovered in the village. Historians also believe Navenby was a significant staging point on the Roman Ermine Street, as the Romans are reported to have maintained a small base or garrison in the village. Navenby became a market town after receiving a charter from Edward the Confessor in the 11th century. The charter was later renewed by William Rufus, Edward III and Richard II. When the market fell into disuse in the early 19th century, Navenby returned to being a village.
The ruins of Palmyra in 2010

Palmyra (/ˌpælˈmaɪrə/; Palmyrene: Tadmor; Arabic: تَدْمُر‎ Tadmur) is an ancient Semitic city in present-day Homs Governorate, Syria. Archaeological finds date back to the Neolithic period, and documents first mention the city in the early second millennium BC. Palmyra changed hands on a number of occasions between different empires before becoming a subject of the Roman Empire in the first century AD.
Downtown Lethbridge as seen on 4th Avenue South, facing west

Lethbridge (/ˈlɛθbrɪdʒ/) is a city in the province of Alberta, Canada. With a recorded population of 101,482 in its 2019 municipal census, Lethbridge became the fourth Alberta city to surpass 100,000 people. The nearby Canadian Rocky Mountains contribute to the city's warm summers, mild winters, and windy climate. Lethbridge lies southeast of Calgary on the Oldman River.

Lethbridge is the commercial, financial, transportation and industrial centre of southern Alberta. The city's economy developed from drift mining for coal in the late 19th century and agriculture in the early 20th century. Half of the workforce is employed in the health, education, retail and hospitality sectors, and the top five employers are government-based. The only university in Alberta south of Calgary is in Lethbridge, and two of the three colleges in southern Alberta have campuses in the city. Cultural venues in the city include performing art theatres, museums and sports centres. It was home to ARCHES, North America's busiest supervised drug use facility from March 2018 to August 2020 which was dubbed a "new landmark" by The Star.
Average global temperatures from 2010 to 2019 compared to a baseline average from 1951 to 1978 (Source: NASA)

Climate change includes both the global warming driven by human emissions of greenhouse gases, and the resulting large-scale shifts in weather patterns. Though there have been previous periods of climatic change, since the mid-20th century the rate of human impact on Earth's climate system and the global scale of that impact have been unprecedented.

That human activity has caused climate change is not disputed by any scientific body of national or international standing. The largest driver has been the emission of greenhouse gases, of which more than 90% are carbon dioxide (CO
2) and methane. Fossil fuel burning for energy consumption is the main source of these emissions, with additional contributions from agriculture, deforestation, and industrial processes. Temperature rise is accelerated or tempered by climate feedbacks, such as loss of sunlight-reflecting snow and ice cover, increased water vapour (a greenhouse gas itself), and changes to land and ocean carbon sinks.

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In this month

9 October 1851 – Work began on the constitution of the American Geographical Society, at a meeting held in the Geographical and Statistical Library in New York City
15 October 2011 – Beginning of broadcasting of National Geographic Farsi
31 October 1693 – Formation of township which later became city of Perth Amboy, New Jersey
31 October 1935 – Birth of geography and anthropology professor David Harvey (pictured), in Gillingham, Kent, South East England

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Geography of China

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Featured biography

Featured biography articles in geography

The mark of Pierre Rossier's photographic studio in Fribourg

Pierre Joseph Rossier (16 July 1829 – 22 October 1886) was a pioneering Swiss photographer whose albumen photographs, which include stereographs and cartes-de-visite, comprise portraits, cityscapes, and landscapes. He was commissioned by the London firm of Negretti and Zambra to travel to Asia and document the progress of the Anglo-French troops in the Second Opium War and, although he failed to join that military expedition, he remained in Asia for several years, producing the first commercial photographs of China, the Philippines, Japan and Siam (now Thailand). He was the first professional photographer in Japan, where he trained Ueno Hikoma, Maeda Genzō, Horie Kuwajirō, as well as lesser known members of the first generation of Japanese photographers. In Switzerland he established photographic studios in Fribourg and Einsiedeln, and he also produced images elsewhere in the country. Rossier is an important figure in the early history of photography not only because of his own images, but also because of the critical impact of his teaching in the early days of Japanese photography. Read more...

More featured biographies
Zhang Heng Edward Wright (mathematician) Emery Molyneux Daniel Boone Albert Stanley, 1st Baron Ashfield Caspar David Friedrich Robert Hues Alfred Russel Wallace Mary Anning Edward Drinker Cope Georg Forster David A. Johnston Richard Hakluyt James Tod Shen Kuo Fridtjof Nansen Clements Markham

Did you know...

Did you know it about Geography?

... that during the collision of India with Asia, the southern part of the Tibetan Plateau achieved its high elevation before the northern part?
... that although Constance Kies was a nutrition scientist, she majored in English, and minored in history, geography, library science, and home economics?
... that the first known paravian dinosaurs were from China, but they now live on every continent?
... that the dark and fatalistic humour of Canadian comedians has been attributed to the dangers of Canada's climate and geography?

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Vital articles to understand Geography.

Map of populous Europe showing physical, political and population characteristics, as per 2018

Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It comprises the westernmost part of Eurasia and is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east. Europe is commonly considered to be separated from Asia by the watershed of the Ural Mountains, the Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea, and the waterways of the Turkish Straits. Although some of this border is over land, Europe is generally accorded the status of a full continent because of its great physical size and the weight of history and tradition. Read more...