Collins Reef, also known as Johnson North Reef/Johnson Reef North; Vietnamese: Đá Cô Lin; Roxas Reef (Filipino: Bahura ng Roxas); Mandarin Chinese: 鬼喊礁; pinyin: Guǐhǎn Jiāo, is a Vietnamese occupied and controlled reef and the westernmost feature of Union Banks Atoll near the centre of Dangerous Ground in the Spratly islands in the South China Sea.

[1] It is also claimed by China (PRC), Taiwan (ROC), and the Philippines.

Collins Reef lies at 9°46′26″N 114°15′20″E / 9.7738889°N 114.2555556°E / 9.7738889; 114.2555556 (9°46′26″N 114°15′20″E / 9.7738889°N 114.2555556°E / 9.7738889; 114.2555556), to the northwest of Johnson South Reef, at the southwestern corner of the Union Banks.

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