Was researching Q post #128 which discusses how to read the Map.

In the post with graphic, it says:

Map provides picture. There is a picture of Washington crossing Delaware. Famous pic.

There is a National Park. Washington Crossing National Park with website. There is a map.

(pictured)

On the map, there can be found a keystone which is highway marker for a highway 532.

Is 532 or the numbers 5-3-2 significant at all?