Montserrat, a British Crown Colony, has been mapped by
the Directorate of Overseas Surveys (now Ordnance Survey
International (OSI)) and the principal map is a single sheet
at 1:25,000 scale (DOS 359). This was first published in
1963 and was compiled photogrammetrically from air
photography flown in the 1950s. The subsequent editions
incorporated revisions from large-scale mapping and local
information. They have also been redesigned in a tourist
style and printed in process colors. The projection is
Transverse Mercator, Clarke 1880 ellipsoid (modified). The
relief is shown by 50 ft contours supplemented by hill
shading and layer tints. Edition 5 (1978) has a UTM grid,
while the latest edition 6 (1983) has the BWI grid and an
additional arbitrary alphanumeric labelling of the squares
for local referencing.
Large scale contoured mapping was first undertaken in the
1970s initially covering Plymouth and the west at 1:2,500
scale and the eastern part of the island at 1:5,000. Currently,
38 sheets at 1:2,500 (DOS 059) are available in varying
editions, revised to 1989, and cover much of the island. The
remainder of the island is covered by seven sheets at 1:5,000
scale (DOS 159), also revised to 1989.
Soviet military topographic mapping of Montserrat 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 1966-1967). These products are available in print,
digital raster and digital vector GIS formats from East View Geospatial.
Copyright © 2014 East View Geospatial, Inc.