Royal Colonial Boundary of 1665

The line was selected as a small adjustment to the 36 degree southern border of Virginia colony in the creation of the Province of Carolina.

To decree an imaginary geographic straight line, 3,000 miles long, as a boundary across an unknown continent that he didn't even own was the height of royal pomposity.

Walker did not do a perfect job due to dense virgin forest, mountainous terrain, and rough riverbeds.

[3] In the west, the line would later be used for approximating a de facto boundary north of which slavery could not be practiced, as established in the Missouri Compromise of 1820.

[4] A marker at the Cumberland Gap National Historical Park denotes where the boundaries of Kentucky, Tennessee, and Virginia intersect.