The Seward Peninsula is a large peninsula on the western coast of the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...

whose westernmost point is

Cape Prince of Wales Cape Prince of Wales (Russian: Мыс Принца Уэльского) () is the westernmost mainland point of the Americas. It was named in 1778 by Captain James Cook of the British Royal Navy, presumably for the Prince of Wales at the time, Geo ...

. The peninsula projects about into the Bering Sea between

Norton Sound Norton Sound (russian: Нортон-Саунд) is an inlet of the Bering Sea on the western coast of the U.S. state of Alaska, south of the Seward Peninsula. It is about 240 km (150 mi) long and 200 km (125 mi) wide. The Yukon ...

, the Bering Strait, the Chukchi Sea, and

Kotzebue Sound Kotzebue Sound (russian: Залив Коцебу) is an arm of the Chukchi Sea in the western region of the U.S. state of Alaska. It is on the north side of the Seward Peninsula and bounded on the east by the Baldwin Peninsula. It is long and wi ...

, just below the

Arctic Circle The Arctic Circle is one of the two polar circles, and the most northerly of the five major circles of latitude as shown on maps of Earth. Its southern equivalent is the Antarctic Circle. The Arctic Circle marks the southernmost latitude at w ...

. The entire peninsula is about long and wide. Like

Seward, Alaska Seward (Alutiiq: ; Dena'ina: ''Tl'ubugh'') is an incorporated home rule city in Alaska, United States. Located on Resurrection Bay, a fjord of the Gulf of Alaska on the Kenai Peninsula, Seward is situated on Alaska's southern coast, approxima ...

, it was named after

William H. Seward William Henry Seward (May 16, 1801 – October 10, 1872) was an American politician who served as United States Secretary of State from 1861 to 1869, and earlier served as governor of New York and as a United States Senator. A determined oppon ...

, the

United States Secretary of State The United States secretary of state is a member of the executive branch of the federal government of the United States and the head of the U.S. Department of State. The office holder is one of the highest ranking members of the president's Ca ...

who fought for the U.S.

purchase of Alaska The Alaska Purchase (russian: Продажа Аляски, Prodazha Alyaski, Sale of Alaska) was the United States' acquisition of Alaska from the Russian Empire. Alaska was formally transferred to the United States on October 18, 1867, through a ...

. The Seward Peninsula is a remnant of the

Bering land bridge Beringia is defined today as the land and maritime area bounded on the west by the Lena River in Russia; on the east by the Mackenzie River in Canada; on the north by 72 degrees north latitude in the Chukchi Sea; and on the south by the tip of ...

, a roughly thousand mile wide swath of land connecting

Siberia Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of ...

with mainland Alaska during the

Pleistocene Ice Age The Pleistocene ( , often referred to as the ''Ice age'') is the geological epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in ...

. This land bridge aided in the migration of humans, as well as plant and animal species, from Asia to North America. Excavations at sites such as the Trail Creek Caves and Cape Espenberg in the Bering Land Bridge National Preserve as well as

Cape Denbigh Cape Denbigh is located on the Seward Peninsula in Eastern Norton Sound in the U.S. state of Alaska. It is notable for the Iyatayet site, an Archaic stage hunter-gatherer archaeological site. The headland is a moderately high, rounded hill, joined ...

to the south have provided insight into the timeline of prehistorical migrations from Asia to the Seward Peninsula.

Demographics

Most of the peninsula is in the

Nome Census Area Nome Census Area is a census area located in the U.S. state of Alaska, mostly overlapping with the Seward Peninsula. As of the 2020 census, the population was 10,046, up from 9,492 in 2010. It is part of the unorganized borough and therefore h ...

, but part is in the

Northwest Arctic Borough Northwest Arctic Borough is a borough located in the U.S. state of Alaska. As of the 2020 census, the population was 7,793, up from 7,523 in 2010. The borough seat is Kotzebue. The borough was formed on June 2, 1986. Geography According to t ...

. These are the communities on the Seward Peninsula, with 2005 state population estimates: Other locations on the Seward Peninsula include the mining towns of Council,

Solomon Solomon (; , ),, ; ar, سُلَيْمَان, ', , ; el, Σολομών, ; la, Salomon also called Jedidiah (Hebrew language, Hebrew: , Modern Hebrew, Modern: , Tiberian Hebrew, Tiberian: ''Yăḏīḏăyāh'', "beloved of Yahweh, Yah"), ...

, Candle, Haycock and Taylor. While still frequented by locals of neighboring communities, there are no longer year round residents in these locations. There is a

United States Coast Guard The United States Coast Guard (USCG) is the maritime security, search and rescue, and law enforcement service branch of the United States Armed Forces and one of the country's eight uniformed services. The service is a maritime, military, mult ...

LORAN LORAN, short for long range navigation, was a hyperbolic radio navigation system developed in the United States during World War II. It was similar to the UK's Gee system but operated at lower frequencies in order to provide an improved range u ...

station at

Port Clarence Port Clarence is a small village now within the borough of Stockton-on-Tees and ceremonial county of County Durham, England. It is situated on the north bank of the River Tees, and hosts the northern end of the Middlesbrough Transporter Bri ...

. The

U.S. Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Sign ...

operates a

radar Radar is a detection system that uses radio waves to determine the distance (''ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, w ...

station at the "Tin City" site, southeast of Wales.

Geography and ecology

The Seward Peninsula has several distinct geologic features. The

Devil Mountain Lakes Devil Mountain Lakes ( Inupiaq: ''Qitiqłiik'') is a maar (a form of crater lake) in the western part of Alaska. The lake is considered to be the largest maar in the worldmaar lakes in the world and part of the Espenberg volcanic field. They were formed over 21,000 years ago as the result of an underground steam explosion. The Killeak Lakes and White Fish Lake are also volcanic maar lakes of notable size on the northern Seward Peninsula. Four mountain ranges line the southern side of the peninsula, the most prominent being the Kigluaik (or Sawtooth) Mountains. The highest point in the range and the peninsula is the peak of

Mount Osborn Mount Osborn is the highest point in the Kigluaik Mountains, and also on the Seward Peninsula. It is approximately 4714 feet high and is located on the north end of the range. Despite being almost one thousand feet taller, Osborn's fame is matched ...

. Other mountain ranges on the Seward Peninsula include the

Bendeleben Mountains The Bendeleben (/ˈbɛn.dəˌleɪ.bɨn/) Mountains are a mountain range on the heart of the Seward Peninsula in Nome Census Area, Alaska, United States. This range forms a major divide between drainage basins draining into the Pacific Ocean and ...

, Darby Mountains, and

York Mountains York Mountains are located on the Seward Peninsula in the U.S. state of Alaska. They extend inland from the Bering Sea to the rocky cape of the same name. On the seaward sides, the streams have incised canyon-like valleys. Eastward, the York Mou ...

. The Bendeleben Mountains exhibit evidence of recent faulting in the late Cenozoic, with the majority of tectonic deformation and mountain formation occurring in the Cretaceous, which is attributed to regional tectonic block rotation of the Bering plate in the Arctic. The Lost Jim Lava Flow north of Kuzitrin Lake is a lava field formed roughly 1,000 to 2,000 years ago, which covers roughly . Several geothermal hot springs are located throughout the peninsula, including

Serpentine Hot Springs The Bering Land Bridge National Preserve is one of the most remote Protected areas of the United States, located on the Seward Peninsula. The National Preserve protects a remnant of the Bering Land Bridge that connected Asia with North Americ ...

, Pilgrim Hot Springs, Granite Mountain, Elim, Clear Creek and Lava Creek. The Seward Peninsula has several rivers. The largest include the Koyuk, Kuzitrin, Niukluk,

Fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...

, Tubuktilik, Kiwalik, Buckland and Agiupuk rivers. These play a vital role in the subsistence lifestyles of many peninsula residents and ease travel, hunting, and fishing. Most peninsula rivers have at least a small yearly run of several varieties of

salmon Salmon () is the common name for several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the family (biology), family Salmonidae, which are native to tributary, tributaries of the ...

, as well as

Dolly Varden trout The Dolly Varden trout (''Salvelinus malma'') is a species of salmonid fish native to cold-water tributaries of the Pacific Ocean in Asia and North America. It belongs to the genus '' Salvelinus'', or true chars, which includes 51 recognized ...

Arctic grayling The Arctic grayling (''Thymallus arcticus'') is a species of freshwater fish in the salmon family Salmonidae. ''T. arcticus'' is widespread throughout the Arctic and Pacific drainages in Canada, Alaska, and Siberia, as well as the upper Mis ...

, whitefish of various species,

northern pike The northern pike (''Esox lucius'') is a species of carnivorous fish of the genus '' Esox'' (the pikes). They are typical of brackish and fresh waters of the Northern Hemisphere (''i.e.'' holarctic in distribution). They are known simply as a ...

, and

burbot The burbot (''Lota lota'') is the only gadiform (cod-like) freshwater fish Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments di ...

. Most rivers on the Seward Peninsula freeze in mid-October; spring break-up usually occurs in mid- to late May. The Seward Peninsula is the westernmost limit of distribution for the black spruce, ''Picea mariana'', a dominant overstory species of the region. Alaska's

reindeer herding Reindeer herding is when reindeer are herded by people in a limited area. Currently, reindeer are the only semi-domesticated animal which naturally belongs to the North. Reindeer herding is conducted in nine countries: Norway, Finland, Sweden, Rus ...

was concentrated on the Seward Peninsula ever since the first shipment of

reindeer Reindeer (in North American English, known as caribou if wild and ''reindeer'' if domesticated) are deer in the genus ''Rangifer''. For the last few decades, reindeer were assigned to one species, ''Rangifer tarandus'', with about 10 subspe ...

were imported there from eastern Siberia in 1892. It was believed that migrating caribou could be prevented from mingling with the domesticated reindeer on the Peninsula because of the geography of the peninsula, thereby avoiding loss of reindeer that might wander off with caribou. However, in 1997 the domesticated reindeer joined the Western Arctic Caribou Herd on their summer migration and disappeared.

, the westernmost point on the mainland of the Americas, is on the western tip. The cape is only from

Cape Dezhnev Cape Dezhnyov or Cape Dezhnev (; ), formerly known as East Cape or Cape Vostochny, is a cape that forms the easternmost mainland point of Asia. It is located on the Chukchi Peninsula in the very sparsely populated Chukotka Autonomous Okrug o ...

, the closest point on the

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

n mainland. In August 2011 Russia announced an ambitious project to construct a rail tunnel under the Bering Strait, linking the Seward Peninsula in Alaska with the

Chukchi Peninsula The Chukchi Peninsula (also Chukotka Peninsula or Chukotski Peninsula; russian: Чуко́тский полуо́стров, ''Chukotskiy poluostrov'', short form russian: Чуко́тка, ''Chukotka''), at about 66° N 172° W, is the eastern ...

in Russia. If completed, the project would cost an estimated US$65 billion and would be the world's longest tunnel at long. The peninsula was named after

, the

who negotiated the

Purchase Purchasing is the process a business or organization uses to acquire goods or services to accomplish its goals. Although there are several organizations that attempt to set standards in the purchasing process, processes can vary greatly between ...

of Alaska from Russia in 1867.

References

{{Authority control Peninsulas of Alaska Regions of Alaska Inuit territories