Yeah, went out yesterday too. Some of the trails were surprisingly dry, some fairly muddy. Overall got a decent ride in.
Here's a link to Shred's maps of North Park:
http://www.pennsylvaniadirt.com/2009/07 ... EntryStartAlso, if you had crossed the road when you were at Wisconsin shelter, and headed right, you would've wound yourself down some great downhill trails and ended up at the spillway.