Fuel EX 9.8. Mostly cloudy, much cooler but still humid, wind not a factor in the woods. Average speed way down due to terrible trail conditions in some places - I don't think they do any maintenance on this Forest Preserve. Many of the grass trails haven't been mowed in months, some of the woodland trails are impassible due to high vegetation and fallen trees and branches. Quite a few trails just closed down and many of the trails listed on the FP maps are no longer in use. Very frustrating as this is a beautiful natural area. I think 4 wheelers and horses would have a hard time traversing the park. Surprisingly poor condition for such a supposedly 'rich' area around Barrington. If I go back, it will be in Fall, Winter or early Spring - pretty overgrown for Summer and mosquitoes were horrible when I stopped. On the plus side: some of the grass trails were nice and the woodland dirt trails were excellent but inconsistent. One of the slowest rides I've ever done.