Isthmus
Overview
 
An isthmus is a narrow strip of land connecting two larger land areas usually with waterforms on either side.

Canal
Canal
Canals are man-made channels for water. There are two types of canal:#Waterways: navigable transportation canals used for carrying ships and boats shipping goods and conveying people, further subdivided into two kinds:...

s are often built through isthmuses where they may be particularly advantageous to create a shortcut for marine transportation. The Panama Canal
Panama Canal
The Panama Canal is a ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Built from 1904 to 1914, the canal has seen annual traffic rise from about 1,000 ships early on to 14,702 vessels measuring a total of 309.6...

 bisects the Isthmus of Panama, thereby connecting the North Atlantic
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 and Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

s; the Suez Canal
Suez Canal
The Suez Canal , also known by the nickname "The Highway to India", is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea and the Red Sea. Opened in November 1869 after 10 years of construction work, it allows water transportation between Europe and Asia without navigation...

 adjoins the North Atlantic and Indian
Indian Ocean
The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...

 Oceans, cutting across the Isthmus of Suez to connect the Mediterranean Sea
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean surrounded by the Mediterranean region and almost completely enclosed by land: on the north by Anatolia and Europe, on the south by North Africa, and on the east by the Levant...

 and the Gulf of Suez
Gulf of Suez
The northern end of the Red Sea is bifurcated by the Sinai Peninsula, creating the Gulf of Suez in the west and the Gulf of Aqaba to the east. The Gulf of Suez is formed within a relatively young, but now inactive rift basin, the Gulf of Suez Rift, dating back about 28 million years...

/Red Sea
Red Sea
The Red Sea is a seawater inlet of the Indian Ocean, lying between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb strait and the Gulf of Aden. In the north, there is the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez...

.
Encyclopedia
An isthmus is a narrow strip of land connecting two larger land areas usually with waterforms on either side.

Canal
Canal
Canals are man-made channels for water. There are two types of canal:#Waterways: navigable transportation canals used for carrying ships and boats shipping goods and conveying people, further subdivided into two kinds:...

s are often built through isthmuses where they may be particularly advantageous to create a shortcut for marine transportation. The Panama Canal
Panama Canal
The Panama Canal is a ship canal in Panama that joins the Atlantic Ocean and the Pacific Ocean and is a key conduit for international maritime trade. Built from 1904 to 1914, the canal has seen annual traffic rise from about 1,000 ships early on to 14,702 vessels measuring a total of 309.6...

 bisects the Isthmus of Panama, thereby connecting the North Atlantic
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 and Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

s; the Suez Canal
Suez Canal
The Suez Canal , also known by the nickname "The Highway to India", is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea and the Red Sea. Opened in November 1869 after 10 years of construction work, it allows water transportation between Europe and Asia without navigation...

 adjoins the North Atlantic and Indian
Indian Ocean
The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...

 Oceans, cutting across the Isthmus of Suez to connect the Mediterranean Sea
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean surrounded by the Mediterranean region and almost completely enclosed by land: on the north by Anatolia and Europe, on the south by North Africa, and on the east by the Levant...

 and the Gulf of Suez
Gulf of Suez
The northern end of the Red Sea is bifurcated by the Sinai Peninsula, creating the Gulf of Suez in the west and the Gulf of Aqaba to the east. The Gulf of Suez is formed within a relatively young, but now inactive rift basin, the Gulf of Suez Rift, dating back about 28 million years...

/Red Sea
Red Sea
The Red Sea is a seawater inlet of the Indian Ocean, lying between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb strait and the Gulf of Aden. In the north, there is the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez...

. Strait
Strait
A strait or straits is a narrow, typically navigable channel of water that connects two larger, navigable bodies of water. It most commonly refers to a channel of water that lies between two land masses, but it may also refer to a navigable channel through a body of water that is otherwise not...

 is the sea counterpart of isthmus.

Southeast Asia

  • The Isthmus of Kra connecting Malay Peninsula
    Malay Peninsula
    The Malay Peninsula or Thai-Malay Peninsula is a peninsula in Southeast Asia. The land mass runs approximately north-south and, at its terminus, is the southern-most point of the Asian mainland...

     with the mainland of Asia
    Asia
    Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

    .

Red Sea

  • The Isthmus of Suez
    Suez
    Suez is a seaport city in north-eastern Egypt, located on the north coast of the Gulf of Suez , near the southern terminus of the Suez Canal, having the same boundaries as Suez governorate. It has three harbors, Adabya, Ain Sokhna and Port Tawfiq, and extensive port facilities...

     between North Africa
    North Africa
    North Africa or Northern Africa is the northernmost region of the African continent, linked by the Sahara to Sub-Saharan Africa. Geopolitically, the United Nations definition of Northern Africa includes eight countries or territories; Algeria, Egypt, Libya, Morocco, South Sudan, Sudan, Tunisia, and...

     and Sinai Peninsula
    Sinai Peninsula
    The Sinai Peninsula or Sinai is a triangular peninsula in Egypt about in area. It is situated between the Mediterranean Sea to the north, and the Red Sea to the south, and is the only part of Egyptian territory located in Asia as opposed to Africa, effectively serving as a land bridge between two...

    .


Caucasus

  • The Caucasus
    Caucasus
    The Caucasus, also Caucas or Caucasia , is a geopolitical region at the border of Europe and Asia, and situated between the Black and the Caspian sea...

     region connecting Europe
    Europe
    Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

     to Asia
    Asia
    Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

     between the Black Sea
    Black Sea
    The Black Sea is bounded by Europe, Anatolia and the Caucasus and is ultimately connected to the Atlantic Ocean via the Mediterranean and the Aegean seas and various straits. The Bosphorus strait connects it to the Sea of Marmara, and the strait of the Dardanelles connects that sea to the Aegean...

     and Caspian Sea
    Caspian Sea
    The Caspian Sea is the largest enclosed body of water on Earth by area, variously classed as the world's largest lake or a full-fledged sea. The sea has a surface area of and a volume of...

     is sometimes considered an isthmus.

In Australia

  • Eaglehawk Neck near Port Arthur, Tasmania
    Port Arthur, Tasmania
    Port Arthur is a small town and former convict settlement on the Tasman Peninsula, in Tasmania, Australia. Port Arthur is one of Australia's most significant heritage areas and the open air museum is officially Tasmania's top tourist attraction. It is located approximately 60 km south east of...

    .
  • The Neck in Bruny Island, Tasmania
    Tasmania
    Tasmania is an Australian island and state. It is south of the continent, separated by Bass Strait. The state includes the island of Tasmania—the 26th largest island in the world—and the surrounding islands. The state has a population of 507,626 , of whom almost half reside in the greater Hobart...

     connecting North and South Bruny.

New Zealand

  • Auckland isthmus between Northland Peninsula
    North Auckland Peninsula
    The North Auckland Peninsula, frequently referred to simply as the Northland Peninsula, is located in the far north of the North Island of New Zealand. The peninsula is easily confused with, though not the same as Northland Region, which occupies the top 80% of the peninsula...

     and the rest of New Zealand's North Island
    North Island
    The North Island is one of the two main islands of New Zealand, separated from the much less populous South Island by Cook Strait. The island is in area, making it the world's 14th-largest island...

    .
  • The Rongotai isthmus, where Wellington International Airport
    Wellington International Airport
    Wellington International Airport is an international airport located in the suburb of Rongotai in Wellington, the capital city of New Zealand. It is a secondary hub and focus city for Air New Zealand and its subsidiaries...

     is located.


Mediterranean Sea

  • Isthmus of Corinth
    Isthmus of Corinth
    The Isthmus of Corinth is the narrow land bridge which connects the Peloponnese peninsula with the rest of the mainland of Greece, near the city of Corinth. The word "isthmus" comes from the Ancient Greek word for "neck" and refers to the narrowness of the land. The Isthmus was known in the ancient...

    , which connects the Peloponnese
    Peloponnese
    The Peloponnese, Peloponnesos or Peloponnesus , is a large peninsula , located in a region of southern Greece, forming the part of the country south of the Gulf of Corinth...

     peninsula to the rest of Greece
    Greece
    Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

    .
  • Isthmus of Potidea, connecting the Kassandra peninsula with the mainland of Greece
    Greece
    Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

    .
  • Isthmus of Catanzaro
    Isthmus of Catanzaro
    The Isthmus of Catanzaro is the narrow strip of land separating the Ionian Sea from the Tyrrhenian Sea, and is also the narrowest part of the Italian Peninsula.-Characteristics:The Isthmus is approximately 30 kilometres long and is situated in the lowlands between...

    , the narrowest part of Italy
    Italy
    Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

  • Isthmus of Gibraltar
    Disputed status of the isthmus between Gibraltar and Spain
    The Gibraltar territory currently contains an long section of the isthmus that links the Rock with mainland Spain. Spain does not acknowledge British sovereignty over Gibraltar beyond the fortified perimeter of the town as at 1704...


Black Sea

  • Isthmus of Perekop
    Isthmus of Perekop
    The Isthmus of Perekop is the narrow, 5-7 km wide strip of land that connects the peninsula of Crimea to the mainland of Ukraine. The isthmus is located between the Black Sea to the west and the Azov Sea the east. The isthmus takes its name from the Tatar fortress of Perekop.The border between the...

     between Crimea
    Crimea
    Crimea , or the Autonomous Republic of Crimea , is a sub-national unit, an autonomous republic, of Ukraine. It is located on the northern coast of the Black Sea, occupying a peninsula of the same name...

     and Ukraine
    Ukraine
    Ukraine is a country in Eastern Europe. It has an area of 603,628 km², making it the second largest contiguous country on the European continent, after Russia...

     proper.


Russia

  • Karelian Isthmus
    Karelian Isthmus
    The Karelian Isthmus is the approximately 45–110 km wide stretch of land, situated between the Gulf of Finland and Lake Ladoga in northwestern Russia, to the north of the River Neva . Its northwestern boundary is the relatively narrow area between the Bay of Vyborg and Lake Ladoga...

     between Lake Ladoga
    Lake Ladoga
    Lake Ladoga is a freshwater lake located in the Republic of Karelia and Leningrad Oblast in northwestern Russia, not far from Saint Petersburg. It is the largest lake in Europe, and the 14th largest lake by area in the world.-Geography:...

     and the Baltic Sea
    Baltic Sea
    The Baltic Sea is a brackish mediterranean sea located in Northern Europe, from 53°N to 66°N latitude and from 20°E to 26°E longitude. It is bounded by the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. It drains into the Kattegat by way of the Øresund, the Great Belt and...

     (Gulf of Finland
    Gulf of Finland
    The Gulf of Finland is the easternmost arm of the Baltic Sea. It extends between Finland and Estonia all the way to Saint Petersburg in Russia, where the river Neva drains into it. Other major cities around the gulf include Helsinki and Tallinn...

    ).
  • Olonets
    Olonets
    Olonets is a town and the administrative center of Olonetsky District of the Republic of Karelia, Russia, situated on the Olonka River, to the east from Lake Ladoga. Population: -History:...

     Isthmus between Lake Ladoga and Lake Onega
    Lake Onega
    Lake Onega is a lake in the north-west European part of Russia, located on the territory of Republic of Karelia, Leningrad Oblast and Vologda Oblast. It belongs to the basin of Baltic Sea, Atlantic Ocean, and is the second largest lake in Europe after Lake Ladoga...

    .

United Kingdom

  • La Coupée isthmus in Sark
    Sark
    Sark is a small island in the Channel Islands in southwestern English Channel, off the French coast of Normandy. It is a royal fief, geographically located in the Channel Islands in the Bailiwick of Guernsey, with its own set of laws based on Norman law and its own parliament. It has a population...

    .
  • Forth
    Firth of Forth
    The Firth of Forth is the estuary or firth of Scotland's River Forth, where it flows into the North Sea, between Fife to the north, and West Lothian, the City of Edinburgh and East Lothian to the south...

    -Clyde
    Firth of Clyde
    The Firth of Clyde forms a large area of coastal water, sheltered from the Atlantic Ocean by the Kintyre peninsula which encloses the outer firth in Argyll and Ayrshire, Scotland. The Kilbrannan Sound is a large arm of the Firth of Clyde, separating the Kintyre Peninsula from the Isle of Arran.At...

     isthmus in Scotland
    Scotland
    Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

    .
  • Mavis Grind
    Mavis Grind
    Mavis Grind is a narrow isthmus joining the Northmavine peninsula to the rest of the island of Shetland Mainland in the Shetland Islands, UK. It is just wide at its narrowest point...

     isthmus in Shetland.
  • Rhins of Galloway
    Rhins of Galloway
    The Rhins of Galloway is a hammer-head peninsula in Dumfries and Galloway, Scotland...

     isthmus in Wigtownshire
    Wigtownshire
    Wigtownshire or the County of Wigtown is a registration county in the Southern Uplands of south west Scotland. Until 1975, the county was one of the administrative counties used for local government purposes, and is now administered as part of the council area of Dumfries and Galloway...

     (where Stranraer
    Stranraer
    Stranraer is a town in the southwest of Scotland. It lies in the west of Dumfries and Galloway and in the county of Wigtownshire.Stranraer lies on the shores of Loch Ryan on the northern side of the isthmus joining the Rhins of Galloway to the mainland...

     is situated), Scotland
    Scotland
    Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

    .
  • Bardsey Island
    Bardsey Island
    Bardsey Island , the legendary "Island of 20,000 saints", lies off the Llŷn Peninsula in the Welsh county of Gwynedd. The Welsh name means "The Island in the Currents", although its English name refers to the "Island of the Bards", or possibly the island of the Viking chieftan, "Barda". It is ...

    .

Iceland

  • Isthmus of Westfjords
    Westfjords
    The Westfjords or West Fjords is the name for the large peninsula in northwestern Iceland. It is connected to the rest of Iceland by a 7 km wide isthmus between Gilsfjörður and Bitrufjörður. The Westfjords are very mountainous; the coastline is heavily indented by dozens of fjords surrounded by...

     peninsula, which connects to the mainland of Iceland
    Iceland
    Iceland , described as the Republic of Iceland, is a Nordic and European island country in the North Atlantic Ocean, on the Mid-Atlantic Ridge. Iceland also refers to the main island of the country, which contains almost all the population and almost all the land area. The country has a population...

    .


USA

In Puget Sound, south of the Guemes Channel sits Fidalgo Island. This island is about 15 minutes west of Burlington, Washington separated from the mainland by only a wide marshy isthmus and the Swinomish Channel that cuts through the isthmus.
The city of Seattle, Washington has spread itself across a large isthmus of ridges and valleys extending north to south along the eastern side of Puget Sound.
A little south of Puget Sound about 45 miles north of the mouth the Columbia River on the west coast of Washington sits Grays Harbor. In the early twentieth century long jetties were built to stabilize the entrance to Grays Harbor and to clear out the sand banks that interfered with navigation. Because of these jetties in the last few years there has been a large amount of erosion on the shorelines. This prompted the Corps of Engineers to deposit about 600,000 cubic meters of sand and pebbles in order to create an artificial isthmus. This wide isthmus now prevents the sea from breaking into the bay and threatening the town of Westport.
  • Madison Isthmus
    Madison Isthmus
    The Madison Isthmus is an isthmus in Madison, Wisconsin between Lake Mendota and Lake Monona. It is located between Madison's Northeast side to the east and the University of Wisconsin campus to the west. The south portion of the isthmus is home to the Wisconsin State Capitol, State Street, and...

    .
  • Seattle, Washington
    Seattle, Washington
    Seattle is the county seat of King County, Washington. With 608,660 residents as of the 2010 Census, Seattle is the largest city in the Northwestern United States. The Seattle metropolitan area of about 3.4 million inhabitants is the 15th largest metropolitan area in the country...

    .

Chile

  • Ofqui Isthmus, Aisén Region
  • Isthmus of Muñoz Gamero Peninsula
    Muñoz Gamero Peninsula
    Muñoz Gamero Peninsula is a peninsula in Chile. It is bordered on the west by the Smyth Channel and is connected to the Patagonia mainland by a narrow isthmus, which separates Skyring Sound from Seno Obstrucción. The peninsula consists of several smaller peninsulas jutting from its central land...

  • Isthmus of Brunswick Peninsula
    Brunswick Peninsula
    Brunswick Peninsula is a large peninsula in Magallanes y la Antártica Region, Patagonia, Chile, at . It is wide at its base in the north, and almost in the south. It measures in length from the base to Cape Froward, the southernmost point of the American mainland. This yields an area of more...


Argentina

  • Istmo Carlos Ameghino, Province of Chubut
  • Quetrihué Isthmus of Quetrihué Peninsula in Nahuel Huapi Lake
    Nahuel Huapi Lake
    Nahuel Huapi Lake is a lake in the lake region of northern Patagonia between the provinces of Río Negro and Neuquén, in Argentina. The lake depression consists of several glacial valleys carved out along faults and Miocene valleys that were later dammed by moraines.Nahuel Huapi lake, located...


British Overseas Territories

  • Isthmus of East Falkland
    East Falkland
    East Falkland the largest of the Falkland Islands in the South Atlantic, has an area of and a coastline long. Most of the population of the Falklands live in East Falkland, almost all of them living in the northern half of the island...

    .

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