Hog Pen is named after elk who tend to wallow in the marshy area at the half way point in this trail. Keep your eyes peeled you may see them also. Hog Pen represents a good stretch of rolling singletrack which starts at the top of Breakneck and ends at a doubletrack connector. Follow the connector to your choice of trails.
This is a work in progress, so keep that in mind as you run. Many banked turns are being improved and trail's bed is also being worked on.