Magellan GPS
I have a Magellan Roadmate GPS with it you can put in preference such as RV height, weight, if it has propane. The only problem that I have had with it is some camp grounds are located in the wrong place and sometimes it take you out of the way to get to the campground, so when we get about 20 miles from the campground we look it up on our phone using Google Earth to make sure we are taking the right way.
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