This antique original geological map of the Lake Superior region from 1910 is a must-have for collectors and enthusiasts of vintage maps. The folding map format makes it easy to store and carry, while the detailed depiction of the geological features of the region provides a fascinating glimpse into the earth sciences of the early 1900s.  The year 1910 is an important aspect of the map's history, and it is sure to be a valuable addition to any collection of North America maps, maps, atlases, and globes, and antiques.