As long as you have an internet connection in the mountains!
The maps download function, for offline use, was taken out. You have to sign to another service (every trail) to do so, but just got errors. I paid for it the to be able to download maps.
Going back to messy motionx.
goodbye 3d maps...
Tata123a about Maps 3D PRO - Hike & Bike, v3.4.1