Baltimore & Ohio S-1 2-10-2 6149 descends the west side of the Allegheny Mountains at Keystone, Pa., after crossing the summit at Sand Patch on April 5, 1947.
William P. Price photo
B&O 2-10-2 on Sand Patch Grade
By Angela Cotey | March 10, 2018
| Last updated on January 4, 2021
