Guys, I'm looking to buy my first GPS and must admit I am pretty ignorant as to all the features avalible. My primary use would be for horse back riding in places like National Forests and such. I have heard that some offroad maps can be downloaded but I have no idea on where to find them. But once I figure it out this is a feature I'm very interested in. So I'm looking at the Garmin 60-CS mainly because it has expandable memory for said maps and even says it can be used on the street as well.
Am I on the right track here?
Thanks in advance for your help,
Mark
Am I on the right track here?

Thanks in advance for your help,
Mark