The SRTM data are being processed for building a digital
topographic database of Earth. SRTM elevation data can
be combined with Landsat images to produce breathtaking
views of Earth.
these links to find out more about SRTM.
SRTM at NASA
Why Use Radar?
Santa Barbara SRTM Image
Topographic maps provide just one
method for visualizing the shape of Earth's surface.
Other methods, such as raised relief images and three-dimensional
renderings, also show topography.
these links to explore sites that show more topographic
maps, images, and mapping information.
Relief Maps, Topographic Maps, and Aerial Photos for the U.S
Topographic and Aerial Map FlyOvers