[canals-list] Canal Railroads? Gravity Railroads?

[trainfinder22]

  Here in Pennsysvania there were canal railroads that pulled canal 
boats over the mounatains.. There were also short railroads that wenmt 
from the coal mines to the canal locks to load up the boats but for 
what ever reason they found it more effciacite to go from mine railroad 
to canal boat rather then mine railroad all teh way to the citys..
Scranton and Northeastern PA had a number of canals that canniceted the 
Susquahanna River Valley.