Above, Nolde (from Section Hiker), below, the mansion at Nolde (from Nolde's Facebook page.)
Now that I think of it, I'd have to say Nolde ties with Blue Marsh for the best trail running in Berks - in terms of scenic-ness, trail quality (i.e. not nasty Appalachian rockiness like the AT or French Creek), decent hills and relative isolation. And the Pagoda Pacers hold a 10k trail race there every June, the aptly-named Run for the Ages, with Dipsea-style staggered starts! That is, to keep it interesting, the fastest age-groups are penalized, so the race really is up for grabs. And if that’s not enough for you, it was the training ground of one New York Marathon winner - so far.