North Danger Reef

Part of a series on the
Spratly Islands
Spratly Islands military occupations map
Related articles
Spratly Islands dispute Dangerous Ground (South China Sea) Great wall of sand History of the Spratly Islands List of maritime features in the Spratly Islands Philippines and the Spratly Islands Republic of Morac-Songhrati-Meads Territorial disputes in the South China Sea
Confrontations
Southwest Cay incident (1975) Johnson South Reef skirmish (1988)
Military occupations
Occupied by China Cuarteron Reef · Huayang Reef Fiery Cross Reef · Yongshu Reef Gaven Reefs · Nanxun Reef and Xinan Reef Hughes Reef · Dongmen Reef Johnson South Reef · Chigua Reef Mischief Reef · Meiji Reef Subi Reef · Zhubi Reef Occupied by Malaysia Ardasier Reef · Ubi Reef Dallas Reef · Laya Reef Erica Reef · Siput Reef Investigator Shoal · Peninjau Shoal Louisa Reef · Semarang Barat Kecil Reef Mariveles Reef · Mantanani Reef Swallow Reef · Layang-Layang Island Occupied by the Philippines Thitu Island · Pagasa Island West York Island · Likas Island Northeast Cay · Parola Island Nanshan Island · Lawak Island Loaita Island · Kota Island Flat Island · Patag Island Lankiam Cay · Panata Island Irving Reef · Balagtas Reef Second Thomas Shoal · Ayungin Shoal Occupied by Taiwan Itu Aba Island · Taiping Island Zhongzhou Reef Occupied by Vietnam Spratly Island · Truong Sa Island Southwest Cay · Song Tu Tay Island Sin Cowe Island · Sinh Ton Island Sand Cay · Son Ca Island Namyit Island · Nam Yet Island Amboyna Cay · An Bang Island Collins Reef · Co Lin Reef Ladd Reef · Lat Reef

North Danger Reef (11°25′N 114°21′E / 11.417°N 114.350°E / 11.417; 114.350Coordinates: 11°25′N 114°21′E / 11.417°N 114.350°E / 11.417; 114.350) 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) circled by a number of features.

Features of North Danger Reef

Commencing in the NE and travelling anti-clockwise to the SW:

• North Reef (11°28′N 114°23′E / 11.467°N 114.383°E / 11.467; 114.383)
  • North Pass
• Northeast Cay (11°27′N 114°21′E / 11.450°N 114.350°E / 11.450; 114.350) - light on NE side
• Shira Islet
  • Middle Pass
• Southwest Cay (11°26′N 114°20′E / 11.433°N 114.333°E / 11.433; 114.333) - marked by a light
  • West Pass - N
• Jenkins Patches
  • West Pass - S
• South Reef (11°23.3′N 114°17.9′E / 11.3883°N 114.2983°E / 11.3883; 114.2983) - SW of the Reef
  • South Pass

Continuing anti-clockwise to the East and NE:

• Sabine Patches
• Farquharson Patches
  • East Pass
• Day Shoal - NE of reef
• Iroquois Ridge - central N of reef

See also

• List of maritime features in the Spratly Islands

References

• US NGA (15 Nov 2014). "Pub. 161, Sailing Directions (Enroute) South China Sea and the Gulf of Thailand, Fifteenth Edition, 2014." (PDF). msi.nga.mil. pp. 8–9, (Sections 1.21 & 1.22). 
• NGA Chart 93044 shows the area NW of Dangerous Ground
• NGA Chart 93042 shows the detail of North Danger Reef