Boston College Summary: New airborne laser elevation, or lidar, surveys of the earth provide a 10-fold improvement in the precision of digital topographical maps, geologists report.

Laser-equipped aircraft have been scanning the New Hampshire landscape, creating high-resolution topographical maps that could help with everything from emergency preparedness to the expansion of ...

iOS (): Google's new Maps app for iOS is pretty great, but it has one hidden feature that makes it even better.Here's how to enable hidden topographical maps on your jailbroken iPhone.