That is a cool looking map. As an alternate to prints on gloss paper consider prints on cloth. I've printed several maps on cloth at about $25 per yard x 42" in wide. I find the maps are easily transported to the game location because they can be folded up and stored with my books. In addition, there are fabric markers available that can be used to write on the cloth. The marker color fades or vanishes after getting wet. Search for "custom fabric printing" to find several suggestions. I like to use Spoonflower.com. The drawback to Spoonflower.com is that it has a 40MB max upload size the last time I used them. This works okay with some maps, but other maps were just too large and needed to use an alternate source without a file size limit, DesignYourFabric.com. They didn't have a file size limit, but there costs are much more expensive since they are shipping from Canada.