The GPS point have a different coordination system and datum than the google maps, why is that?
Google maps uses WGS84 and a lat long coordination system. Topographic maps in Ecuador use the Provisional South American Datum, UTM Zone 17s. Calculating distance on a map with the Ecuadorian map system is much easier as they use meters. Using latitude and logitude demands you to calculate degrees, minutes and seconds to meters. Difficult!
