There are many different types and kinds of printable maps available online, I’ve listed a few, but many more can be found simply by searching online. We printed ours and glued the bottom and the sides only to leave an opening for the pocket
3 Free Maps from TeacherVision
Teacher Vision is a great website that offers
you 3 freebie printables before you have to
purchase a membership. You can snag a
couple maps from there if you haven’t used
your freebies yet.