• Photo of Lemon House, Level #6, and Engine House on a beautiful summer day.

    Allegheny Portage Railroad

    National Historic Site Pennsylvania

There are park alerts in effect.
show Alerts »
  • Road Closure

    Beginning June 10, a section of Mineral Point Road near Staple Bend Tunnel will be closed for a few weeks for road work.

  • Road Closure

    Please be aware that part of the public area loop has been closed until further notice as the park starts preparatory efforts for this summer's paving project on the Picnic Area Road.

Watersheds

Allegheny Portage Railroad's Main Unit is located at the juncture of three Pennsylvania River Regions. To the north, headwaters of Bradley Run flow toward Clearfield and the West Branch of the Susquehanna River. To the east, the headwaters of Blair Gap Run eventually flow to the Juniata River. The third region, the Lower Allegheny and Monongahela Rivers, is fed by headwaters originating southwest of the park. Because the Allegheny Portage Railroad followed Blair Gap, that Run is the main stream located within the park.

Did You Know?

drawing of the South Fork Dam

The dam at South Fork, PA, that broke causing the Johnstown Flood of 1889 was originally built for the Mainline Canal System. The Allegheny Portage Railroad was an important part of the Mainline, so the stories are interconnected.