Am I seeing it right that the X is about 5-10 miles east of present-day Windsor, NC?
It’s right across the Chowan River from Edenton. Edenton was a major city in the colonial era, but it’s not a good location, which is why it hasn’t expanded much. It floods, gets hit by hurricanes, and the mosquitoes are horrible. It’s basically brackish swamp, same as most of eastern NC. But very good access to the for ocean bound ships, plus access to the river system, which is how they transported goods inland via flat-bottom boats.
Supposedly it’s on Hatteras............