I am looking for the same thing. I looked at www.garmin.com Under the title outdoors the geko 201 looked good without spending a lot.. anyone have any luck, good or bad with these?
with a gps you get what you pay for.
the cheap units are just that.
the best gps value wise for sledding is the garmin 76s.
it also has a trail map download.
Get one with a 12 volt adaptor to save on battery life... and use it in your truck on the way to work, to get groceries etc. until you are intimate with all the functions of your model. Then enjoy, they are amazing.