Dirty German Endurance Fest
Along the Pennypack Creek within the limits of Pennypack park. Course is basically a figure 8 consisting of mostly single track trail and a short paved bike path section.One loop is 25K. 50 K runners will run it twice, 50 mile runners will run a mini loop first and then run the main loop 3 times. No traffic at all. It's actually pretty cool , that you run miles and miles within the city limits of Philadelphia without seeing a house or a car at all.