Baltimore and Ohio Railroad: Ladder of inclines
Baltimore and Ohio Railroad: Ladder of inclines over Boardtree Hill which allowed two carriages at a time from a full train to be shunted up an over the hill. This system operated until the Kingwood Tunnel was driven through the Alleghany Mountains. Wood
Picture No
13903670
Media ID
48481789
Size
4500px x 2980px
(4.4MB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive





























