Creating Routes

Having a tough time with Basecamp, trying to use to create hiking routes for my GPSMAP 64.

I can see trails on the device, but nothing comes up on Basecamp.  I tried to find a state park in basecamp, and it doesn't come up under POI or address even.  All the map shows is road data it looks like.  Do I need to buy additional maps even though I have the maps on the device?

Not sure where to start.