US 21 south end, 1955-1968
Hunting Island (dates are approximate). The road traced in red on this map has been vacated, and the actual endpoint is underwater now, due to beach erosion.
US Highway endpoints in South Carolina
The URL for this map ends with the 2-letter state abbreviation "SC"; if you'd like to see endpoints in Georgia, just replace the "SC" with "GA". You can quickly jump to any other state using that method, with a few exceptions: for any of the six New England states, use "ME". For Delaware, use "MD". For Nevada, use "CA".