Is it possible to take a Digital Elevation Model of my favorite wilderness area and using OS X run some slope calculations in order to find new hike-able paths though an otherwise treacherous terrain? [more inside]
posted by jlowen on Dec 1, 2007 - 8 answers

How can I best track my every move with GPS and then map it for a website and my personal use? [more inside]
posted by crazy finger on Nov 29, 2006 - 12 answers