1) the one in the iPhone
Ya i dont want to load myself down with maps. So the gazzeteer looks good for my state and the 3 states around me.So, I've used a GPS with mapping feature for a long time but am a recent Gaia convert. That being said - I ALWAYS have paper maps as a backup (the Gazetteer as mentioned, plus NatGeo Trails illustrated if available for my area). Electronics break, maps and compass don't.