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41st Annual One Day Hike

  • Apr 26, 2014 · 3:00 AM

The One Day Hike comprises two concurrent, non-competitive hikes of 100 and 50 km that follow the C&O Canal towpath, and end at Bolivar, WV. The 100 km event (100K; 62.1 miles) starts at 3 AM from the Thompson Boat Center parking lot in Georgetown, DC; the 50 km event (50K; 31.1 miles) start at 10 AM from Whites Ferry, MD. Both hikes proceed along the towpath, crossing the footbridge into Harpers Ferry after mile marker 60.

All hikers must be pre-registered. During the hike, they pass through eight support stations, manned by volunteers, where they receive food and drink and, if necessary, first aid assistance. While on the trail, they are monitored by volunteer bike patrols. Hikers must arrive at support stations by cut-off times or are required to drop out, and must finish by midnight.

Registration costs $50 and is on-line at starting February 1 at 5 PM. Note that registration closes when the 350-hiker limit is attained, which took about 30 minutes last year.

The Sierra Club Potomac Region Outings (SCPRO; organizes training hikes specifically designed for ODH hikers (although open to all) in the twelve or so weeks leading up to the ODH. The hikes are held on Saturdays, become progressively longer, follow routes that are relatively flat, and are done at hikers’ individual paces. ODH hikers are strongly encouraged to do these hikes in order to improve their chances of completing the ODH. Longer hikes also allow shorter options for 50K trainees.

About 100 volunteers are required on hike day to help run the ODH. We need reliable and enthusiastic people to man the support stations, patrol the trail on bikes, and to provide first aid—all while encouraging hikers on their way. (People with first-aid or medical experience are very valuable for the latter work.) First-time volunteers receive an ODH T-shirt and the eternal gratitude of the hikers. If you are interested in volunteering, please contact Mike ([masked]).

For official email updates, join the Yahoo discussion group at or send a blank email to [masked]. For more information about the ODH, see The ODH has been held every year since 1974.

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  • Mike

    We had an incredible One Day Hike day! Fantastic weather and people. Thanks to all the hikers and volunteers!! Photos at

    April 28, 2014

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