The vast and powerful Lake Superior is the largest freshwater lake by surface in the world! Its deepest point lies more than 700 feet below sea level. Pir fabulous map is carved into Baltic Birch wood, features a solid sassafras frame, accurate satellite depths of the lake and an acrylic dust cover for protection. Points of interest, towns, rivers and more are shown on the surrounding land areas. Measures 31" w x 25"h.