Reply To: Confused over Challenge Caches! Welcome to Dartmoor Geocaching › Forums › General Geocaching Topics › Confused over Challenge Caches! › Reply To: Confused over Challenge Caches! July 22, 2013 at 5:34 am #2334 GoldenHaystackParticipant Hi Vodkashots. Is your GPS mapping set to WGS84? This is the latest reference coordinate system used by the Global Positioning System. That could be the reason you are some 100+ meters out when you enter coordinates into your GPSr. GH.
