03-27-2023, 07:56 PM
Have a look at the various offerings on the Avenza Map Store. Nearly all the National Park, National Forest, and USGS maps can be downloaded there, and your phone's GPS will show you where you are on them.
I really liked maps.me (using OpenStreetMap info) for offline maps, especially for international travel, but they've changed hands and one of my mappy friends is now grumpy about them. I haven't looked to see what changed. But I navigated Yellowstone quite happily with those in 2020, when the rest of the family was bemoaning not having service. When I did have service, I used CalTopo.com to look at the old USGS paper topos (scanned and tiled).
Here.com, which I think is better on navigation and roadnames than Google in the US, also gives you the option to download areas to use offline.
I really liked maps.me (using OpenStreetMap info) for offline maps, especially for international travel, but they've changed hands and one of my mappy friends is now grumpy about them. I haven't looked to see what changed. But I navigated Yellowstone quite happily with those in 2020, when the rest of the family was bemoaning not having service. When I did have service, I used CalTopo.com to look at the old USGS paper topos (scanned and tiled).
Here.com, which I think is better on navigation and roadnames than Google in the US, also gives you the option to download areas to use offline.