So after reading all these posts I sort of went down a wormhole on the coordinates, and found something pretty cool I think. As some other have noted, south of the coordinates is Rome, New York. When I was looking at the coordinates and Rome on Bing Maps I also noticed that there was a Florence New York nearby. That's cool I thought. So I looked into it a little more using the distance calculator and low and behold the three points make an almost perfect Pythagorean triangle. Either a crazy coincidence or a very nice tie in to the DLC.
Here is the map with my notations. ENJOY!