Doug Bosley and Megan OMalley walk over the rails leading from the replica of Engine House #6 , which was the high point of the Allegheny Portage Railroad. Two steam engines were used in each of the Engine Houses. (Darrell Sapp/Post-Gazette)

Allegheny Portage Railroad National Historic Site: An engineering marvel

By Teresa F. Lindeman / Pittsburgh Post-Gazette

The 1800s’ railroad carried everything from cheese, whiskey, nails, tobacco, and of course, bacon.