Noob to the GPS world

[skagithunter]

Hello all,
I have a Nuvi 500. I know it isn't a true off road gps. But it is waterproof and I use it on my motorcycle.
I ride a duel purpose for hunting. My question is....is there any good maps that shows forest service and state roads in Northwest Wa. Elevation isn't really a issue. (if im going up im getting higher LOL)
Would the Nuvi 550 be better because it doesn't come loaded with topo?
I have been lurking trying to learn GPS but it is confusing at best. I do have MapSource and BaseCamp.
I do alot of group rides off road and want to be able to see where a road leads to, Or how long it is. and connecting roads.

              thanks,
                        Brad

[maps4gps]

Try the WA topo.  Or US Planimetric North West if you do not want contours lines.
Then add the Northwest trails; or perhaps the Trails from OSM files.  Both are overlay/transparent.