Geobase
From PathlossWiki
GEOBASE - Canadian terrain data
Geobase has elevation data (CDED), Vector data for roads etc. and satellite imagery for all of Canada
The CDED (Canadian Digital Elevation Data) 1:50,000 and 1:250,000 files. These must be converted in the Pathloss program before they can be used. For more information see the manual under CDED-DTED indexed files. You must download the latest Pathloss update in order to use these.
