National Geography's Topo explorer

National Geographic’s TOPO! Explorer gives daring technophiles a chance to create and share their favorite trails using detailed topographic maps provided by Google Maps. These maps support GPS integration, which makes things easy. Just upload a map to a supported device, head off in the general direction of the trail, and you’re on your way. You can also attach geo-tagged photos to your maps, allowing you to show points of interest (or beauty). And when you’re done you can share you experiences through comments or on the site’s forums.


visit www.topo.com