30.0 MB (5.1 MB compressed)
3978 x 2635 pixels
33.8 x 22.4 cm ⏐ 13.3 x 8.8 in (300dpi)
ANN RONAN PICTURE LIBRARY / HERITAGE IMAGES / SCIENCE PHOTO LIBRARY ANN RONAN PICTURE LIBRARY / HERITAGE IMAGES / SCIENCE PHOTO LIBRARY
Baltimore and Ohio Railroad, North America. 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. Baltimore and Ohio Railroad.
Model release not required. Property release not required.