Hoành Sơn Range is a mountain range in the

North Central Coast Bắc Trung Bộ (literally North Central Region, and often translated as North Central Coast) is one of the geographic regions of Vietnam. It consists of six provinces in northern part of Central Vietnam: Thanh Hóa, Nghệ An, Hà Tĩnh, Qu� ...

region of

Vietnam Vietnam, officially the Socialist Republic of Vietnam (SRV), is a country at the eastern edge of mainland Southeast Asia, with an area of about and a population of over 100 million, making it the world's List of countries and depende ...

. The range runs from

Annamite Range The Annamite Range (; ) is a major mountain range of Mainland Southeast Asia, extending approximately through Laos, Vietnam, and a small area in northeast Cambodia. Geography The highest points of the Annamite Range are the -high Phou Bia, th ...

to the

South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by South China, in the west by the Indochinese Peninsula, in the east by the islands of Taiwan island, Taiwan and northwestern Philippines (mainly Luz ...

in southern

Hà Tĩnh Province Hà is a Vietnamese given name, male or female, meaning "river". Hà is a Vietnamese 'surname' (during French colonialism). The name is transliterated as He in Chinese and Ha in Korean. Ha is the anglicized variation of the surname Hà. It is ...

and northern

Quảng Bình Province Quảng Bình was formerly a southern coastal Provinces of Vietnam, province in the North Central Coast region, the Central Vietnam, Central of Việt Nam, Vietnam. It borders Hà Tĩnh province, Hà Tĩnh to the north, Quảng Trị province, ...

. It's the natural borderline of these two

provinces A province is an administrative division within a country or state. The term derives from the ancient Roman , which was the major territorial and administrative unit of the Roman Empire's territorial possessions outside Italy. The term ''provi ...

. The length of this range is about 50 km. It crosses National Route 1 in

Ngang Pass The Ngang Pass (, , literally "Transverse Mountain Pass") is a mountain pass on the border of the provinces of Quảng Bình and Hà Tĩnh, in the North Central Coast of Vietnam. National Route 1 crosses it as it traverses the Hoành Sơn, a ...

History

The Hoành Sơn mountains once served as a

natural barrier A natural barrier is a physical feature that protects or hinders travel through or over. Mountains, swamps, deserts and ice fields are among the clearest examples of natural barriers. Rivers are a more ambiguous example, as they may obstruct l ...

between

Dai Viet Dai may refer to: Names * Dai (given name), a Welsh or Japanese masculine given name * Dai (surname) (戴), a Chinese surname * Bảo Đại (保大), Emperor of Vietnam from 1926 to 1945 Places and regimes * Dai Commandery, a commandery of ...

and

Champa Champa (Cham language, Cham: ꨌꩌꨛꨩ, چمڤا; ; 占城 or 占婆) was a collection of independent Chams, Cham Polity, polities that extended across the coast of what is present-day Central Vietnam, central and southern Vietnam from ...

from 938 to 1069 when it was annexed by Vietnamese

Lý dynasty The Lý dynasty (, , chữ Nôm: 茹李, chữ Hán: 朝李, Vietnamese language, Vietnamese: ''triều Lý''), officially Đại Cồ Việt (chữ Hán: 大瞿越) from 1009 to 1054 and Đại Việt (chữ Hán: 大越) from 1054 to 1225, was ...

and the site of the 30 km-long Kỳ Anh barrier built by Champa. The border of two countries was moved to the north of

Quảng Trị Quảng Trị () is a district-level town in Quảng Trị Province in the North Central Coast region of Vietnam. It is second of two municipalities in the province after the provincial capital Đông Hà. History The Sino-Vietnamese name Qu ...

province

References

{{DEFAULTSORT:Hoanh Son Range North Central Coast