Antigua, together with neighbouring islands Barbuda and
the uninhabited Redonda, formed a self-governing state in
association with the UK in 1967. In 1981 the islands became
a fully independent state. They were formerly mapped by
the British Directorate of Colonial/Overseas Surveys (now
Ordnance Survey International (OSI)) but the Surveys
Division, St John's, is now responsible for the contemporary
mapping of the islands.
Antigua was one of the first Caribbean islands to be mapped
by the Directorate of Colonial Surveys with publication of
a 1:25,000 scale map (DCS 6) in 1946 based on US Army
Air Corps air photography with military ground control. A
second edition of this map (DOS 306) was published in
1962 but was not subsequently revised. DCS also published
an early 1:10,000 scale contoured map of St John's, the
capital (DCS 11) in 1947. New air photography was flown
in 1968 by Fairey Surveys, and 1:2,500 scale litho-printed
contour mapping of the north part of the island including
St John's was completed in 1970. This urban series (DOS
006) was revised in the late 1970s, based on 1975 air
photography and published in 1978-82 in 53 sheets. In addition, the whole
island was mapped at 1:5,000 scale (DOS 106), in seven sheets covering the center of the island.
The 1:50,000 scale map of Antigua (DOS 406) was derived
from the 1:5,000 scale maps and was first published, as a
tourist map, in 1973. The most recent editions were issued
in 1980. They are printed in process colors with BWI grid
(edition 7) or UTM grid (edition 8). Contours are at 50 ft
intervals, and the entire land surface is shown in shades of
green (distinguishing cultivation and grassland from bush
and trees). Marsh and mangrove swamp are shown in shades
of blue. The projection is Transverse Mercator, Clarke 1880
A map of Barbuda in nine sheets at 1:10,000 scale was published
in 1970 (DOS 257) based on 1966 air photography. The sheets have contours
at 25 ft intervals and vegetation cover is shown by annotation.
The projection is Transverse Mercator, Clarke 1866
ellipsoid. A derived two-sheet 1:25,000 scale map in four
colors, with vegetation type shown by colored symbols,
and with 25 ft contours, was issued in 1970-1 (DOS 357).
The projection is Transverse Mercator with UTM grid.
Redonda appears on the OSI map of Montserrat.
Soviet military topographic mapping of Antigua and Barbuda exists at the following scales: 1:1,000,000 (1 sheet, complete coverage, published in 1966);
1:500,000 (1 sheet, complete coverage, published in 1986) and 1:200,000 (3 sheets, complete coverage, published in 1967). These products are available in print,
digital raster and digital vector GIS formats from East View Geospatial.
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