There are hunting programs you can use on a GPS that tell you whether you're on private or public lands and even if you're on a game refuge. You can also get different apps to use on your computer if you prefer that. You can always go old school and use a map and compass but many hunters like the convenience of a GPS. Plus, with a GPS, you might find some pockets of public land that less and maybe even no people are hunting or aware of. I know it's more gear but it's still cheaper than those fines. Not trying to criticize, just offer another potential solution for you.