It is located just off of the eastern end of St. John island. For many years the island fell between the claimed maritime boundaries of the British Virgin Islands and U.S. Virgin Islands. However, the United Kingdom Foreign and Commonwealth Office formally relinquished its claim to Flanagan Island in 1977 in an agreement with a US delegation headed by David Colson, Deputy Assistant Secretary for Oceans, US Department of State.
- "Excerpt of treaties between the US and the UK establishing maritime boundaries in the Caribbean". archive.com. Retrieved 18 May 2014.
- Virgin Islands National Park
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