Can someone clarify what maps I ought to be able to use with BC?

Former Member
Former Member

I remain quite confused about maps and Basecamp. It is my understanding that I can only load maps that come from a GPS device, and that since I have a RV 770-LMT, the only maps I can use are City Navigator. 

Am I misunderstanding this? Is there any workaround? Or, would I have to buy another Garmin device to get, say, topographic maps?