California Wall Maps
The California Maps listed below make excellent wall decor; Some may even be available laminated, rolled up and perfect for mounting (not folded).
Creator of Total Escape, DanaMite, has her two largest reference maps professionally mounted on half-inch thick foam-core called GatorBoard. Wooden stretcher bars for the backside give it support and make for easy hanging.
Very delicate edges (without a frame), so have a large place to hang the map and extra hands to help get it up on the wall. Transport is usually an issue after these large maps are ready, so best to find a flat, clean truck bed, or rent a van and bring lots of blankets to wrap it for the ride.