GAIA maps is a great resource as well. You can easily layer MVUMs and public land overlays to get you out to some amazing spots. It’s also nice because you can select the area you want to explore and download that map for offline use before you leave, then reception isn’t a problem. It is a yearly subscription that is $39, but there are usually 10-20% off discount codes if you search around.
Google maps is downloadable for offline use now too.
Welcome to the world of forest road rebels