Mapping program for Mac
I think what you want is " RV Trip Wizard" it is the best I have found for planning a trip across country. Will give you everything you need to plan a trip.It is an Application that you can download to your Mac and will show you campsites, gas, disel,places to eat just about everything you need. It will cost you around 65.00 per year but well worth it if you can afford it.
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