Warren County is a county located in the northeastern Piedmont region of the U.S. state of North Carolina, on the northern border with Virginia. As of the 2010 Census, the population was 20,972. Its county seat is Warrenton. It was a center of tobacco and cotton plantations, education, and later textile mills.

Granville County is a county located on the northern border of the U.S. state of North Carolina. As of the 2010 Census, the population was 59,916. Its county seat is Oxford.Granville County encompasses Oxford, NC Micropolitan Statistical Area, which is also included in the Raleigh-Durham-Chapel Hill, NC Combined Statistical Area. The county has access to Kerr Lake and Falls Lake and is part of the Roanoke, Tar and Neuse River watersheds.

Halifax is a town in Halifax County, Virginia, United States, along the Banister River. The population was 1,309 at the 2010 census. It is the county seat of Halifax County.

Roxboro is a city and the county seat of Person County in the U.S. state of North Carolina. The population was 8,362 at the 2010 census. The city is 30 miles (48 km) north of Durham and is a part of the four-county Durham–Chapel Hill Metropolitan Statistical Area, which has a population of 504,357 as of the 2010 Census. The Durham–Chapel Hill MSA is a part of the larger Raleigh–Durham–Cary Combined Statistical Area, which has a population of 1,749,525 as of the 2010 Census.