St. Vincent and the Grenadines became a fully independent state within the British Commonwealth in 1979. Mapping has been undertaken by the British Directorate of Overseas Surveys (DOS), (now Ordnance Survey International (OSI)), with the first edition 1:25,000 scale map appearing in 1959 and the 1:50,000 in 1961. The organization responsible for mapping is now the Lands and Surveys Department (LSD), Kingstown.
The 1:50,000 map (DOS 417) was redesigned as a tourist map in 1984 and is printed in process colors, with shaded relief and contours at 500 ft intervals. Projection is Transverse Mercator, Clarke 1880 ellipsoid (modified). The latest edition of 1991 is published as a two-sided map, with St. Vincent and an inset of Kingstown on one side and the St. Vincent and the Grenadines on the reverse.
The 1:25,000 scale map (DOS 317) is in two sheets, covering St. Vincent only, it was last revised in 1983. Contours are at 25 ft or 50 ft intervals, and the projection is Transverse Mercator with BWI grid.
The Grenadines were originally mapped together in a 1:25,000 scale series of six sheets, and a 1:10,000 scale series (DOS 244). Following independence, sovereignty was split between St. Vincent (incorporating the northern Grenadines) and Grenada (chiefly Ronde Island and Carriacou). Of the 1:25,000 scale series only two sheets are maintained, for the Grenada Grenadines, while the 1:10,000 scale mapping has been reorganized for the St. Vincent Grenadines into a five-sheet series (DOS 217), dating from 1983-88. These sheets are in color with a 20 ft contour interval.
1:2,500 scale mapping (DOS 017) covers about 60 percent of St Vincent, and was published in a revised edition in the period 1980-91. There are 134 sheets available. Large scale mapping is also available for the St. Vincent and the Grenadines: 29 sheets at 1:2,500 cover the southern parts of Bequia and Canouan Islands, Mustique, Mayreau and eastern Union Island (DOS 044), while the northern parts of Bequia and Canouan islands are covered by five 1:5,000 scale sheets (DOS 144).
A small-scale map covering the whole national territory (DOS 917) was published in 1984.
Soviet military topographic mapping of St. Vincient and the Grenadines is available at the following scales: 1:1,000,000 (1 sheet, complete coverage, published in 1990); 1:500,000 (1 sheet, complete coverage, published in 1986) and 1:200,000 (5 sheets, complete coverage, published 1966-1967). These products are available in print, digital raster and digital vector GIS formats from East View Geospatial.
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