Sidneys Knob is a Pennsylvania mountain distinguished not by height but by its unusual shape. Unlike the state’s more typical long ridges and broad, flat-topped uplands, it forms part of a bifurcated ridgeline that creates a distinctive profile, especially when viewed from the northeast. The mountain became widely recognized through the Pennsylvania Turnpike, where westbound drivers see it after emerging from the Tuscarora Mountain Tunnel. Its memorable silhouette appeared often on postcards, which sometimes called it Pyramid Point or identified it as Henry's Knob. That striking highway view made it one of the turnpike’s best-known landmarks.

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Metal, Pennsylvania · USA