The roads seem to be the logical next layer. They are likely the first effort made by the military unit to allow vehicular movement and more operations through the beach area. There are two types of roads depicted, improved and un-improved. The…
The dominant features, and therefore first layer of this map are the various water obstacles. The water obstacles are denoted in dark blue and frame the map on the north, west, and east sides. The water must be the first layer, as the rest of the…