Yes, you need to have a basic idea of where you are, which I find is easier on a map, because a map is a big picture, maps cover hundreds of kilometres, so you can always find yourself on a map, all you need is a marked intersection of two roads, and these days with 911 being pretty much ubiquitous roads are a lot better marked then they used to be, I know of only one road that doesn't have a name, but it's not a real road..... The problem with GPS, is the GPS screen is small picture, it covers a tiny area, fine in the city, where that tiny area might be 4 or 5 blocks in size, not so much in the country where you don't see cross roads until your pretty much on top of them. The difficulty with some GPS and a lot of online maps is that they don't mark road types the way old paper maps did, it's an issue with products like Google Maps as well, where paved and gravel roads are marked the same.