One of the earliest general maps of the eastern United States showing railroads in operation. The working lines are in blue, proposed lines are in green. Canals are shown in red and yellow. [From published bibliography]
Tanner, Henry Schenck - Knight, J. W.
The earliest general map to show the South Carolina Canal and Rail Road Company's line which began in Charleston, S.C. It was completed to Hamburg, S.C., in 1833. Its 136 miles of track were then the longest in the world.
Tanner, Henry Schenck - South Carolina Canal and Railroad Company