I live in York county but I practically lived at Paragon on the weekends until they got closed down. Still pissed about that.
The only places i've been riding lately is the local trails, Breezewood Proving Grounds in Bedford county (nice tracks there) and a little trail riding place up in Willow Hill (northern Fulton county). It's not a big enough place to make the drive worthwhile for me, except my buddy's girlfriend lives up there so when we make that hour and a half drive we stay there for a few days.
I'm always looking for new places to ride, it seems like the biggest limiting factor for the good trail riding places is that they're all starting to require memberships. Treverton was cool as hell until people started screwing off and pissing off the locals and ruined it for everybody, now a paid permit is required there like Tower City. My dad and I had a membership at Tower City for 3 or 4 years starting in 2001, but the quality of the trails really went to **** because nobody was maintaining them, and the price to ride kept going up and up. Now it's at least double what it was when we were going there. Same with Rausch Creek, the tracks and trails are still as good as ever, but there's a lot more people riding there and the price to ride went from $25 or 30 a day when we started going there, to around $75 now.