We can go down to our local geological survey office and buy large topo maps on the township level for anywhere in the state fairly inexpensively. Pretty handy stuff when you are hunting public land or new areas. We also found a local printer that could laminate them. It works well for scouting trips and taking temporary notes on for later. Just use a grease pencil and it will wipe off easily. Or use a permanent felt tip for long term marks. They can get wet and still be useable. It adds years to their life. I have a few that are close to 10 years old and still look like new.