The entire course is contained within R. B. Winter State Park at 17215 Buffalo Road Mifflinburg, PA 17844.  The start is near Pavilion 1.  Participants head west on Boiling Spring Trail then continue on Rapid Run Nature Trail.  Instead of turning back into the Rapid Run Natural Area, continue onto Sand Road which is paved.  Participants will follow Sand Road approximately seven tenths of a mile before turning right and then another quick right back onto Boiling Spring Trail and back to the Pavilion to complete one loop, which is roughly 1.6 miles.

http://www.dcnr.state.pa.us/cs/groups/public/documents/document/dcnr_003184.pdf