Helium.com | Hiking & Backpacking | Preparing for a hike using a topographical map http://www.helium.com/knowledge/168640-preparing-for-a-hike-using-a-topographical-map.xml Helium.com > Hiking & Backpacking > Preparing for a hike using a topographical map en-us Copyright Helium.com Sat, 21 Nov 2009 00:16:07 GMT Sat, 21 Nov 2009 00:16:07 GMT Within the past decade, Global Positioning Satellite (GPS) technology became more accurate and less expensive. Because of these trends, many hiker... http://www.helium.com/items/1658271-how-to-use-topographic-maps-for-hiking-hunting-fishing-and-other-backcountry-activities Sat, 21 Nov 2009 15:09:41