The Survey of Bangladesh (SB) founded in 1973 is the
official surveying and mapping organization. It carries out
geodetic and topographic surveys, and compiles and
publishes topographic and smaller scale maps. The country
was mapped by the Survey of India prior to 1947, and in
the years between the partition of the subcontinent and the
establishment of an independent Bangladesh in 1971, by the
Survey of Pakistan. Map specifications are therefore similar
to those established elsewhere in South Asia.
The basic scale series remains the 1:50,000 series in 266
sheets, on a Transverse Mercator projection, Everest ellipsoid.
This map was completely revised by the mid-1990s,
from 1:30,000 scale aerial photographic coverage flown
under Canadian aid programs in 1975. Sheets cover 15'
quadrangles, show relief with 50 ft contours and are printed
in six colors. From this map are derived smaller-scale series,
including a 27-sheet 1:250,000 scale map, revised to 1995,
six sheets at 1:500,000 scale and four-sheet 1:1,000,000 scale
coverage. All these series are published in English language
Soviet military topographic mapping of Bangladesh is available at the following scales: 1:1,000,000 (4 sheets, complete coverage, published 1960-1973);
1:500,000 (7 sheets, complete coverage, published 1959-1971); 1:200,000 (35 sheets, complete coverage, published 1955-1965) and city (1:10,000 to 1:25,000) topographic
mapping of Chittagong and Dhaka published between 1980 and 1983. These products are available in print, digital raster and digital vector GIS formats
from East View Geospatial.
Copyright © 2014 East View Geospatial, Inc.