Looking for some Google-street-views of back-roads near the point where the route reaches the border, I found this: http://www.panoramio.com/photo/17081944
And that started an internet search. So far, I've come across the following:
- An interesting article on the 1728 Virginia - North Carolina boundary survey: http://www.surveyhistory.org/va_&_nc_bounary_line.htm
- This: http://www.waymarking.com/waymarks/WMMEM_NC_VA_Granite_Monument_No_36
- And these: http://www.lastingimpressionsbook.com/pdfs/ncandvirginia.pdf
- And, perhaps most interestingly, this: http://www.newrivernotes.com/nc/wnc2.htm
I've copied the links into here, and published, because I don't have time to sift the wheat from the chaff, and don't want to go thru the process of finding the above from scratch, again. I'm sure there are other, more useful ways to cache these links, but ...