North Danger Reef

North Danger Reef
Disputed atoll
North Danger Reef is located in Spratly Islands
North Danger Reef
North Danger Reef
Other namesVietnamese: Cụm Song Tử
Chinese: 双子群礁, pinyin: Shuāngzǐ Qúnjiāo
Geography
LocationSouth China Sea
Coordinates11°25′N 114°21′E / 11.417°N 114.350°E / 11.417; 114.350
ArchipelagoSpratly Islands
Total islands2
Major islandsNortheast Cay, Southwest Cay
Claimed by
Nautical chart (1911)

North Danger Reef (Vietnamese: Cụm Song Tử) is one of the seven major reefs / banks / etc. in the Spratly Islands area of the South China Sea. It is the most North Western of the features of the Spratly Islands, located to the NW of Dangerous Ground.

The reef is a large (8.5 nautical miles) approximately circular atoll with a central lagoon (~20m deep). The surrounding reef is shallow.[1]

  1. ^ Sailing Directions (Enroute), Pub. 161: South China Sea and the Gulf of Thailand (PDF). Sailing Directions. United States National Geospatial-Intelligence Agency. 2017. p. 12.