Saint Lucia, formerly a British dependency, became fully independent
in 1979, remaining a member of the British
Commonwealth. Mapping was undertaken by the British
Directorate of Overseas Surveys (now Ordnance Survey
International (OSI)). The principal series is at 1:25,000 scale
(DOS 345), first published in 1958 and subsequently revised
from more recent air photos and new field information.
The most recent editions are printed in process colors.
The contour interval is 25 ft (increasing to 50 ft above 250
feet), and the projection Transverse Mercator, Clarke 1880
ellipsoid, with the BWI grid. The latest editions were
published in 1981 for Sheets 2 and 3, and 1988 for Sheet
1 (covering the north end of the island, including Castries).
Soviet military topographic mapping of Saint Lucia exists at the following scales: 1:1,000,000 (1 sheet, complete coverage, published in 1990);
1:500,000 (2 sheets, complete coverage, published in 1986) and 1:200,000 (4 sheets, complete coverage, published in 1966). These products are available in print,
digital raster and digital vector GIS formats from East View Geospatial.
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