A reader sent me the photograph above trying to locate where in Pennsylvania it would have been taken. The photo was on the William Penn Highway (today's US 22), along the Allegheny Mountains at an elevation of 2430 feet. The question is, what is the name of the summit, it is "(blank)N RIDGE SUMMIT".
I know of two major summits along the Alleghenies - Laurel Hill and Chestnut Ridge. A look at the DeLorme Pennsylvania Atlas & Gazetteer doesn't show any ridges in the Alleghenies ending in 'N'. So what ridge is it, and where along the William Penn Highway would this have been shot at.
Also, is there a modern version of this same highway sign standing today?
Penn Ridge would not be at an elevation of 2430' if it was with a Pittsburgh zip code. I think the highest point in Allegheny County is just over 1400' near where I grew up.
Penn Ridge and 15235 is in the Penn Hills area of Allegheny County.
The Allegheny Portage Railroad National Historic Site is accessed from U.S. 22 by the Admiral Peary Hwy out of Cresson.