A marker for Camptown, 4.2 miles north of Wyalusing, Pennsylvania, says the town was named for Joe Camp, a pioneer settler and hunter, who was there in 1793. Marker placed by Pennsylvanian Historical and Museums Commission.
This may have nothing to do with the "Camptown Races" of the song.

The length of the track, and its existence are both questionable. It may be completely fictional.

Many stories invented about the song.