I've never run this race, but it is held in the park where I train, and the trails are awesome. Unfortunately I won't be around this weekend, but if you're near Philly, you should definitely check this one out. All proceeds benefit the park!
My Blog: trailsandcocktails.com
I Run for Oiselle
Hyner 50k: 4/18/15
Laurel Highlands 70M: 6/13/15