http://www.helium.com./knowledge/51246-why-a-map-and-compass-is-just-as-good-as-a-global-positioning-system.xml Helium.com > Hiking & Backpacking > Why a map and compass is just as good as a global positioning system en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT