Yellow Stone Map Offline Scale

The offline map is scaled to online maps, brings you a peace of mind when you know where you are when internet is not available and you are in/outside the Yellow Stone National Park

By using the phone offline, your phone's battery can last a lot longer.

In case get lost, you can plot your locations' latitude, longitude and notify people who are trying to locate you (you must first grand app access to your location by clicking the green star on the main map page)

You can do a lot more with the app such as recording then sharing your trips as named trails with friends, displaying your friends locations, contact sharing, note keeping, timer, fitness etc.

The large app file size is due to the embedded offline tiles that you don't have to download yourself.