These maps are great, but since so many of the mapped streams are actually posted, tiny, overgrown, don't fish well, or have access issues, people could get much more insight on good PA trout stream sections from any edition of the Landis book. The Landis books have been around for what, 15 years? Thank you, troutbert!! The book is really great, and I see why people will pay high prices for the latest one. Of course having Landis and the maps is even better.
One of the many great things about Landis: small streams are drawn in proportion in the maps, not as the same blue line that might be a 4 foot wide stream, and might be a 20 foot wide one. Three tribs into a bigger stream are drawn so you get some sense of how big they really are; you can see one and have some idea that the ones over the horizon are bigger or smaller. GPS maps don't do this. You often can't see small streams through the trees on a satellite map, and these PA overlaid computer maps don't tell you how big or small a stream really is.