National Topographic Data Base
The National Topographic Data Base (NTDB) is a digital database developed by Geomatics Canada. It covers the entire
Canadian landmass and contains the features normally found on topographic maps at the scales of 1:50 000 and 1:250 000.
The available themes are: Hydrography, Hypsography (contours), Vegetation,
Road Network, Roads, Rail Network, Power Network, Designated Areas,
Relief and Landform, Water Saturated Soils, Toponymy and Manmade Features.
The NTDB is highly useful to users of geographic information systems (GIS) and is a good data source for the creation of
thematic maps.
For information on the NTDB coverage at the 1:50 000 and 1:250 000 scales, you may consult the product map indexes.
The data from the NTDB Road Network, Roads and Toponymy themes are recognized as equivalent to
those offered at no cost, since November 19, 2003, on the GeoBase portal under the National Road Network and the
Geographical Names of Canada themes. Since then, these data are also distributed at no cost on the CTI Web site,
with the exception of the $25 minimum charge per order.
As GeoBase data are intended to replace equivalent NRCan data, these NTDB themes could eventually cease to be distributed
on the CTI Web site. We thus encourage you to look into the data specifications and the download functionalities of the
GeoBase portal.
*NTDB data set discrepancies are subject to a
discrepancy process.
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