Johnson South Reef

About

Johnson South Reef, also known as Chigua (Chih-kua) Reef (pinyin: Chìguā Jiāo, Wade–Giles: Chih-kua chiao), Gạc Ma Reef (Vietnamese: Đá Gạc Ma), or Mabini Reef (Filipino: Bahura ng Mabini, lit. 'Reef of Mabini'), is a reef in the southwest portion of the Union Banks in the Spratly Islands of the South China Sea. It is controlled by the People's Republic of China (PRC), but its ownership is disputed and also claimed by the Philippines, Taiwan (ROC), and Vietnam.

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.