Download ALL Landcover for USA (2006) and Canada (2.5 GB zip file)

Download ALL Landcover for Europe (2006) (89 MB zip file)

Download ALL Landcover for the rest of the World (173 MB zip file)

Sources for landcover:

USGS Seamless data distribution system

Natural Resources Canada at Geobase

Corine Landcover at European Environment Agency

Globcover at European Space agency

Source for SRTM THIRD:

USGS NED 1/3 at Seamless data distribution system

Sources for SRTM 1:

USA and Mexico: USGS NED 1 at Seamless data distribution system

USA and Canada: Shuttle Radar Topography Mission (SRTM) data products and non published SRTM

Canada: Natural Resources Canada CDED at Geobase

Canada: Natural Resources Canada CANVEC at Geobase

Canada: ASTER

Sources for SRTM 3:

Main source: Shuttle Radar Topography Mission (SRTM) data products

Alaska: USGS Alasaka NED 2 Seamless data distribution system

North of Canada: Natural Resources Canada CDED Geobase

Eurasia and Groendland: Viewfinder Panoramas

Antartica: Radarsat Antarctic Mapping Project