Used correctly, a GPS – or global positioning system – can be a handy tool for any hiker. Here, we examine how to use GPS for ...

Before diving into the methods, it's essential to understand the difference between altitude and elevation. Altitude refers to the height of an object or place above a given planetary reference plane, ...

iOS 6 gave us the Compass, which, honestly, I’ve never really used that much. The new iOS 7 beta, however, has given me some functionality I’m much more likely to need and use. Heck, I even have a ...