[1] Easy access to the Pittsburgh coal seam's outcrop near the base of Mount Washington allowed several mines to operate there.

[4] The original switchback trails that wound up the steep slopes of Mount Washington were barely passable to a team of horses pulling a loaded wagon.

Immigrants, predominantly from Germany, settled Mount Washington by the early 19th century and worked in the plants adjacent to the Monongahela River.

As the hilltop communities were virtually inaccessible by any other means, many of Pittsburgh's inclines carried horses and wagons as well as foot passengers.

This incline was closed by its owner, the Pittsburgh Railways Company, just prior to all of their streetcar and bus routes being taken over by the Port Authority.

The Monongahela and Duquesne Inclines allow access to Mount Washington's overlook of the downtown area of Pittsburgh.

Its earliest known advertisers were Iron City Beer, Clark's Teaberry Gum and WTAE-TV Channel 4.