Course

Flat, straight, and fast!  Out-and-back along the Chesapeake & Ohio (C&O) Canal Towpath, starting at Mile Marker 11 (northwest end of the Carderock Recreation Area) and heading toward Georgetown.

  • 20 Miler turnaround at Key Bridge (Mile Marker 1).
  • 5 Miler turnaround between Lock 9 (mile 8.70) and Lock 8 (mile 8.33).

Unofficial course map

Aid Stations: We expect to have aid stations at approximately 2.5-mile intervals (Locks 10, Lock 6, Fletcher’s Boathouse, Mile 10 turnaround at Key Bridge).

  • Start/Finish: Water, Gatorade, food
  • Stop #1/7 : Water, Gatorade
  • Stop #2/6: Water, Gatorade
  • Stop #3/5: Water, Gatorade,Gel
  • Stop #4/Turn around: Water, Gatorade

20Miler_MAP