I think it's called Texter Mountain. I'm not sure. Whatever. Yesterday I rode two circuits of climbing near Wernersville. Furnace Rd up to North Galen Hall was probably the steepest longest climb I've ever made -- Gaul Rd seems like an overpass in comparison.
Looking at the Path Profiler in Google Maps, the steepest sections are 10%, 12% and 15% which are definitely the steepest gradients I've been able to manage. In comparison, nearby Huntzinger Rd (slogan: "Insanely steep!") is around 20% and maxing at 25% -- in the bottom-most section. 25% is truly insane. The steepest section of Gaul Rd, meanwhile, is 10% for about a tenth of a mile. And Gaul has a couple of short recovery descents. I'm beginning to feel a little silly for bitching about Gaul so much.
So I rode two circuits of this. 422-Sportsman-Hospital-Furnace-North Galen Hall past the Caron Foundation, then descended North Galen Hall to Hill Rd and back to 422. 20 miles total, which doesn't seem like a lot. But the climbing, of course, made the whole thing seem longer. Here's the Path Profile. I think you can pick out the Texter Mountain section (click to enlarge):