The official mapping agency for Paraguay is the Dirección
del Servicio Geográfico Militar (DSGM) (formerly
Instituto Geográfico Militar), Asunción, founded in 1941.
DSGM is responsible for the surveying and mapping of Paraguay and for geographical information. It supervises
both topographic and thematic maps of the country.
Detailed topographic mapping is of comparatively recent
origin. A 1:100,000 scale photomap series of the south of
the country was prepared by the United States Army Map
Service in the 1960s, but the principal current Series H741
is at 1:50,000 scale, and was begun in association with the
IAGS. This now covers more than 80 percent of the country.
Sheets are in five colors with 10 m interval contours, and
the projection is Transverse Mercator, International spheroid.
There is also a cover of the southern two-thirds of the country
in the 1:250,000 Series H501/H541. This series is on UTM
projection, International spheroid, and is also in five colors,
but with contour interval varying from 10 m to 50 m
according to relief. The earliest sheets date from 1978, but
some were issued under the PAIGH program in the early 1990s.
There is also a series of topographic maps designed to cover
each of the 19 departments, and produced with assistance
from Argentina. Ten or more of these have so far been
published; they vary in scale and contour interval.
DSGM also publishes some small-scale general maps of the
country, which are frequently revised, including a tourist
map of Asunción at 1:25,000 scale and a 1:10,000 map of
the greater Asunción area in 13 sheets.
A series of maps of other cities, Mapa de ciudades Paraguay,
has been in progress since about 1966 (Series H941). The
scale is mostly 1:10,000 with contours at 10 m intervals. The
projection is Transverse Mercator, International spheroid.
Soviet military topographic mapping of Paraguay is available at the following scales: 1:1,000,000 (6 sheets, complete coverage, published 1978-1990) and a city
(1:10,000) topographic map of Asunción published in 1981. These products are available in print, digital raster and digital vector GIS formats from
East View Geospatial.
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