North Face Endurance Challenge

50 miles
April 18, 2015

Sterling, VA
Event Web site

Series of races utilizing trails in the Algonkian Regional Park, Great Falls Regional Park and also the Potomac Heritage trail.  Saturday distances are 50 miles, 50 km and marathon.  Sunday races will be a half marathon, a 10 km and a 5 km.  The event has migrated from early August to early June and now mid-April race dates.