What Navigation Works With No Service?

[childstoys]

Heading somewhere early tomorrow where I will not have service for the last 2 hours of the ride. I know how to get where I’m going but when leave for part two of the trip I’m headed into the unknown across a lot of no service area. 
 

I have a Trailboss with no native nav. I usually use Waze or one of the other map apps. What should I look to do when I start out with no service? I sent myself the turn by turn but I’m not sure how much that will help either. 
 

I’m sure I’ll make it out alive. But it never hurts to ask. Lol 
 

Thanks all!

[calgator73]

Just download offline maps for your trip it will work just fine.

[calgator73]

Forgot to mention... Waze doesn't do offline well...use google maps

[AlaskaErik]

Garmin GPS and Rand McNally road atlas both work in non-service areas.

[Ianf]

I use Herewego on my android phone in those cases. Always worked well even in no cell services areas. Just turn of the data connection in the app.

 

[ericarenee]

Offline google maps work best for me. I download the maps rather i need to be offline or not . it seems to  work faster and use less  phone battery and Data.