Dallas Reef (), also known as ms, Terumbu Laya, lit=; vi, đá Suối Cát;

Mandarin Mandarin or The Mandarin may refer to: Language * Mandarin Chinese, branch of Chinese originally spoken in northern parts of the country ** Standard Chinese or Modern Standard Mandarin, the official language of China ** Taiwanese Mandarin, Stand ...

; Rajah Matanda Reef ( tl, Bahura ng Rajah Matanda), lies on the SW extremity of

Dangerous Ground (South China Sea) Dangerous Ground is a large area in the southeast part of the South China Sea characterized by many low islands and cays, sunken reefs, and atolls awash, with reefs often rising abruptly from ocean depths greater than 1000m. There are few preci ...

in the

Spratly Islands The Spratly Islands ( fil, Kapuluan ng Kalayaan; zh, c=南沙群島/南沙群岛, s=, t=, p=Nánshā Qúndǎo; Malay, id, Kepulauan Spratly; vi, Quần đảo Trường Sa) are a disputed archipelago in the South China Sea. Composed ...

of the

South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Phi ...

. It is approximately 7 km long and 2 km wide, and encloses a lagoon ~15m deep. It is 9 km west of

Ardasier Reef Ardasier Reef (), also known as ms, Terumbu Ubi, lit=Yam Reef; Antonio Luna Reef ( tl, Bahura ng Antonio Luna); vi, đá Kiêu Ngựa; Mandarin , is a triangular shaped feature on the SW extremity of Dangerous Ground in the Spratly Islands. I ...

, and 26 km north of

Swallow Reef Swallow Reef, also known as ms, Pulau Layang-Layang, lit=; vi, Đá Hoa Lau; Mandarin ; Celerio Reef ( tl, Bahura ng Celerio, lit=), is an oceanic atoll of the Spratly Islands administered by Malaysia, which is situated approximately northwe ...

. As with all of the

, the ownership of the atoll is disputed. It is controlled by

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

, and claimed by the People's Republic of China, the

Republic of China (Taiwan) Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast ...

and

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

.Dallas Reef is not claimed by the Philippines – it lies outside of the ''Kalayaan Island Group'' claimed area. The

Filipino Filipino may refer to: * Something from or related to the Philippines ** Filipino language, standardized variety of 'Tagalog', the national language and one of the official languages of the Philippines. ** Filipinos, people who are citizens of th ...

( Tagalog) name is named after precolonial Philippine ruler of

Rajahnate of Maynila In early Philippine history, the Tagalog Bayan ("country" or "city-state") of Maynila ( tl, Bayan ng Maynila; Pre-virama Baybayin: ) was a major Tagalog city-state on the southern part of the Pasig River delta, where the district of Intramu ...

Rajah Matanda Rajah Ache ( Abecedario: ''Rája Aché'' pronounced ''Aki''), better known by his title Rajah Matanda (1480–1572), was one of the rulers of Maynila, a pre-colonial Indianized and Islamized Tagalog polity along the Pasig River in what is now ...

References

Atolls of the Spratly Islands Disputed atolls {{Malaysia-geo-stub