The first treaty delimits the boundary between the British territory of Anguilla and the United States Virgin Islands.

The boundary is a simplified equidistant line that consists of a single maritime straight-line segment 1.34 nautical miles (2.48 km; 1.54 mi) long.

The boundary is a simplified equidistant line that runs in a south–south-east direction until it terminates at the tripoint of Anguilla.

Virgin Islands boundary: it is about 200 nautical miles (370 km; 230 mi) long and consists of 49 straight-line segments defined by 50 individual coordinate points.

The full name of the treaty is Agreement between the Government of the United Kingdom of Great Britain and Northern Ireland and the Government of the United States of America on the Delimitation in the Caribbean of a Maritime Boundary between Puerto Rico/US Virgin Islands and the British Virgin Islands.