use GPS Visualizer to elevation (altitude ). of stations have (latitude and longitude) - YouTube
GPS Visualizer - The "profiles in maps" feature has... | Facebook
GPS Visualizer - a great online tool for GPS, GoogleMaps and GoogleEarth issues - Digital Geography
GPS Visualizer
Sony GPS Unit + GPS Image Tracker + Picasa + GPS Visualize… | Flickr
GPS Visualizer - A minor improvement/addition to the "profiles in maps" feature: individual tracks' pop-up windows now include a profile icon, so you can quickly see an elevation profile of ONLY that